{"id":17936,"date":"2026-07-18T10:56:17","date_gmt":"2026-07-18T01:56:17","guid":{"rendered":"https:\/\/genai-ai.co.jp\/ai-kanri\/?p=17936"},"modified":"2026-07-18T10:56:17","modified_gmt":"2026-07-18T01:56:17","slug":"cc-html-bg-fullscreen","status":"publish","type":"post","link":"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/cc-html-bg-fullscreen\/","title":{"rendered":"\u30102026\u5e747\u6708\u6700\u65b0\u3011HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\u30fb\u7e70\u308a\u8fd4\u3057\u30fb\u56fa\u5b9a\u8868\u793a\u3059\u308b\u65b9\u6cd5\uff5c\u30d2\u30fc\u30ed\u30fc\u5b9f\u88c5\u30fb\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u30fb\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u307e\u3067\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<style>\n.g-flow-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;}\n.g-flow-item{background:linear-gradient(135deg,#1a1a1a,#2a1015);color:#fff;border-radius:8px;padding:16px 14px;min-width:130px;flex:1;text-align:center;}\n.g-flow-arrow{color:#dc2626;font-size:20px;font-weight:700;}\n.g-card-row{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 32px;}\n.g-card-row>div{flex:1;min-width:220px;}\n@media(max-width:600px){\n  .g-flow-row{flex-direction:column;}\n  .g-flow-arrow{transform:rotate(90deg);}\n  .g-card-row{flex-direction:column;}\n  .g-card-row>div{min-width:100%;}\n}\n<\/style>\n\n\n\n<div style=\"margin:0 0 32px;\">\n  <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/07\/thumb-cc-html-bg-fullscreen.jpg\" alt=\"\u30102026\u5e747\u6708\u6700\u65b0\u3011HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\u30fb\u7e70\u308a\u8fd4\u3057\u30fb\u56fa\u5b9a\u8868\u793a\u3059\u308b\u65b9\u6cd5\uff5c\u30d2\u30fc\u30ed\u30fc\u5b9f\u88c5\u30fb\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u30fb\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u307e\u3067\u5b8c\u5168\u30ac\u30a4\u30c9\" style=\"width:100%;height:auto;border-radius:12px;display:block;\">\n<\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-radius:12px;padding:24px 28px;margin:0 0 32px;border-left:4px solid #dc2626;\">\n  <p style=\"font-size:15px;font-weight:700;color:#1a1a1a;margin:0 0 16px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9<\/p>\n  <ol style=\"margin:0;padding-left:20px;font-size:14px;line-height:2.2;list-style:none;\">\n    <li><a href=\"#sec-01\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">01<\/span>HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u57fa\u672c\uff08background-image\uff09<\/a><\/li>\n    <li><a href=\"#sec-02\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">02<\/span>\u80cc\u666f\u753b\u50cf\u306e\u7e70\u308a\u8fd4\u3057\u3092\u8a2d\u5b9a\u3059\u308b\uff08background-repeat\uff09<\/a><\/li>\n    <li><a href=\"#sec-03\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">03<\/span>\u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\u8868\u793a\u3059\u308b\u5b9f\u8df5\u5b9f\u88c5\uff08cover\u30fb100vh\uff09<\/a><\/li>\n    <li><a href=\"#sec-04\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">04<\/span>\u80cc\u666f\u753b\u50cf\u3092\u56fa\u5b9a\u8868\u793a\u3059\u308b\uff08background-attachment: fixed\uff09<\/a><\/li>\n    <li><a href=\"#sec-05\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">05<\/span>::before\u64ec\u4f3c\u8981\u7d20\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u91cd\u306d\u308b<\/a><\/li>\n    <li><a href=\"#sec-06\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">06<\/span>\u30da\u30fc\u30b8\u5168\u4f53\uff08body\uff09\u306e\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b<\/a><\/li>\n    <li><a href=\"#sec-07\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">07<\/span>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3068\u30e2\u30d0\u30a4\u30eb\u3067\u306e\u80cc\u666f\u6700\u9069\u5316<\/a><\/li>\n    <li><a href=\"#sec-08\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">08<\/span>Claude Code\u3067HTML\u80cc\u666f\u5b9f\u88c5\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b<\/a><\/li>\n    <li><a href=\"#faq\" style=\"color:#495057;text-decoration:none;\"><span style=\"color:#dc2626;font-weight:700;margin-right:8px;\">FAQ<\/span>\u3088\u304f\u3042\u308b\u8cea\u554f<\/a><\/li>\n  <\/ol>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u306b\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3057\u305f\u3044\u300d\u300c\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082\u80cc\u666f\u304c\u52d5\u304b\u306a\u3044\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u3092\u4f5c\u308a\u305f\u3044\u300d\u300c\u30b9\u30de\u30db\u3067\u80cc\u666f\u304c\u5d29\u308c\u308b\u300d\u2014\u2014HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u969b\u306b\u3088\u304f\u767a\u751f\u3059\u308b\u8ab2\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\u306b\u306f\u3001CSS\u306e<code>background-image<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3044\u307e\u3059\u3002<code>background-repeat<\/code>\u3067\u7e70\u308a\u8fd4\u3057\u3092\u5236\u5fa1\u3057\u3001<code>background-size: cover<\/code>\u3067\u5168\u753b\u9762\u8868\u793a\u3001<code>background-attachment: fixed<\/code>\u3067\u56fa\u5b9a\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f<strong>\u30b3\u30d4\u30fc\u3057\u3066\u3059\u3050\u4f7f\u3048\u308b\u5b9f\u88c5\u30b3\u30fc\u30c9\u96c6<\/strong>\u3068\u3057\u3066\u3001\u3088\u304f\u4f7f\u3046\u30d1\u30bf\u30fc\u30f3\u3092\u4f53\u7cfb\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">Web\u30b5\u30a4\u30c8\u306e\u30c7\u30b6\u30a4\u30f3\u30af\u30aa\u30ea\u30c6\u30a3\u306fHTML\u306e\u80cc\u666f\u8a2d\u5b9a\u3067\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u300c\u80cc\u666f\u753b\u50cf\uff0b\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u300d\u3067\u767d\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u7f8e\u3057\u304f\u898b\u305b\u308b\u624b\u6cd5\u306f\u3001LP\u3084\u30b3\u30fc\u30dd\u30ec\u30fc\u30c8\u30b5\u30a4\u30c8\u3067\u6a19\u6e96\u7684\u306b\u4f7f\u308f\u308c\u308b\u6280\u8853\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3060\u3051\u3067\u3001\u30d7\u30ed\u54c1\u8cea\u306e\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">background-image\u306eCSS\u306f\u7d44\u307f\u5408\u308f\u305b\u304c\u591a\u304f\u300c\u3069\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u3069\u3046\u4f7f\u3048\u3070\u3044\u3044\u304b\u300d\u3067\u8ff7\u3044\u3084\u3059\u3044\u9818\u57df\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c\u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc\u5b9f\u88c5\u300d\u300c\u7e70\u308a\u8fd4\u3057\u30d1\u30bf\u30fc\u30f3\u80cc\u666f\u300d\u300c\u56fa\u5b9a\u30b9\u30af\u30ed\u30fc\u30eb\u80cc\u666f\u300d\u306a\u3069\u76ee\u7684\u5225\u306e\u30d1\u30bf\u30fc\u30f3\u96c6\u3068\u3057\u3066\u6574\u7406\u3057\u307e\u3057\u305f\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-image<\/strong>\u306e\u57fa\u672c\u69cb\u6587\u3068HTML\u3078\u306e\u9069\u7528\u65b9\u6cd5\u304c\u5206\u304b\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-repeat\u306e\u5236\u5fa1<\/strong>\u3067\u30bf\u30a4\u30eb\u30fb\u6a2a\u7e70\u308a\u8fd4\u3057\u3092\u4f7f\u3044\u5206\u3051\u3089\u308c\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc\u80cc\u666f<\/strong>\u306e\u5b8c\u5168\u306a\u5b9f\u88c5\u30b3\u30fc\u30c9\u304c\u624b\u306b\u5165\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-attachment: fixed<\/strong>\u3067\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u3092\u4f5c\u308c\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>::before\u64ec\u4f3c\u8981\u7d20<\/strong>\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u91cd\u306d\u308b\u65b9\u6cd5\u304c\u5206\u304b\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u30b9\u30de\u30db\u30fb\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6<\/strong>\u3067\u306e\u80cc\u666f\u6700\u9069\u5316\u624b\u6cd5\u304c\u5206\u304b\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>Claude Code<\/strong>\u3067HTML\u80cc\u666f\u5b9f\u88c5\u3092\u65e5\u672c\u8a9e\u6307\u793a\u3067\u81ea\u52d5\u751f\u6210\u3067\u304d\u308b<\/span><\/div>\n\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-01\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">01<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BG IMAGE BASIC<\/span>\n  <span class=\"section-title\" style=\"display:block;\">HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u57fa\u672c\uff08background-image\uff09<\/span>\n  <span class=\"section-desc\">style\u5c5e\u6027\u30fbCSS\u30d5\u30a1\u30a4\u30eb\u30fb\u5916\u90e8URL\u6307\u5b9a\u306e3\u65b9\u6cd5\u3092\u6bd4\u8f03\u3059\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HTML\u3067\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001CSS\u306e<code>background-image<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u306b<code>url()<\/code>\u95a2\u6570\u3067\u753b\u50cf\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u5148\u306f\u2460\u30a4\u30f3\u30e9\u30a4\u30f3style\u5c5e\u6027\u2461&lt;style&gt;\u30bf\u30b0\u5185CSS\u2462\u5916\u90e8CSS\u30d5\u30a1\u30a4\u30eb\u306e3\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>background-image\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\uff1aCSS\u3067\u8981\u7d20\u306e\u80cc\u666f\u306b\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u300cbackground-image: url(\u753b\u50cf\u306e\u30d1\u30b9);\u300d\u306e\u5f62\u5f0f\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002HTML\u306e&lt;img&gt;\u30bf\u30b0\u3068\u306f\u9055\u3044\u3001\u80cc\u666f\u3068\u3057\u3066\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u4e0a\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\uff08\u30c6\u30ad\u30b9\u30c8\u30fb\u30dc\u30bf\u30f3\u7b49\uff09\u3092\u91cd\u306d\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u753b\u50cf\u30d1\u30b9\u306f\u76f8\u5bfe\u30d1\u30b9\uff08..\/images\/bg.jpg\uff09\u307e\u305f\u306f\u7d76\u5bfeURL\uff08https:\/\/...\uff09\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<table>\n<thead><tr><th>\u6307\u5b9a\u65b9\u6cd5<\/th><th>\u30b3\u30fc\u30c9\u4f8b<\/th><th>\u30e1\u30ea\u30c3\u30c8<\/th><th>\u30c7\u30e1\u30ea\u30c3\u30c8<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u30a4\u30f3\u30e9\u30a4\u30f3style<\/td><td><div style=\"background-image:url(...);\"><\/td><td>\u624b\u8efd\u306b\u8a66\u305b\u308b<\/td><td>\u7ba1\u7406\u304c\u7169\u96d1\u30fb\u518d\u5229\u7528\u4e0d\u53ef<\/td><\/tr>\n<tr><td>&lt;style&gt;\u30bf\u30b0<\/td><td>&lt;style&gt;.hero{background-image:...}&lt;\/style&gt;<\/td><td>\u8907\u6570\u8981\u7d20\u306b\u9069\u7528\u53ef<\/td><td>HTML\u3068CSS\u304c\u6df7\u5728<\/td><\/tr>\n<tr><td>\u5916\u90e8CSS\u30d5\u30a1\u30a4\u30eb<\/td><td>.hero{background-image:url(...);}<\/td><td>\u6700\u3082\u63a8\u5968\u30fb\u4fdd\u5b88\u3057\u3084\u3059\u3044<\/td><td>\u30d5\u30a1\u30a4\u30eb\u3092\u5206\u3051\u3066\u7ba1\u7406\u304c\u5fc5\u8981<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">&lt;!-- \u65b9\u6cd51: \u30a4\u30f3\u30e9\u30a4\u30f3style\u3067\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a --&gt;<\/span>\n&lt;<span style=\"color:#cba6f7;\">div<\/span> <span style=\"color:#89b4fa;\">style<\/span>=<span style=\"color:#a6e3a1;\">\"background-image: url('images\/hero.jpg'); height: 400px;\"<\/span>&gt;\n  \u30c6\u30ad\u30b9\u30c8\u30b3\u30f3\u30c6\u30f3\u30c4\n&lt;\/<span style=\"color:#cba6f7;\">div<\/span>&gt;\n\n<span style=\"color:#6c7086;\">&lt;!-- \u65b9\u6cd52: style\u30bf\u30b0\u5185\u306eCSS\u3067\u8a2d\u5b9a --&gt;<\/span>\n&lt;<span style=\"color:#cba6f7;\">style<\/span>&gt;\n<span style=\"color:#89b4fa;\">.hero<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">400px<\/span>;\n}\n&lt;\/<span style=\"color:#cba6f7;\">style<\/span>&gt;\n&lt;<span style=\"color:#cba6f7;\">div<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"hero\"<\/span>&gt;\u30c6\u30ad\u30b9\u30c8\u30b3\u30f3\u30c6\u30f3\u30c4&lt;\/<span style=\"color:#cba6f7;\">div<\/span>&gt;\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">\u80cc\u666f\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u5834\u5408\u306e\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8<\/strong><\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u2460\u753b\u50cf\u30d1\u30b9\u304c\u6b63\u3057\u3044\u304b\uff08\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u30fb\u62e1\u5f35\u5b50\u30fb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u78ba\u8a8d\uff09\u2461\u5bfe\u8c61\u8981\u7d20\u306bheight\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\uff08\u9ad8\u3055\u304c0\u3060\u3068\u80cc\u666f\u304c\u898b\u3048\u306a\u3044\uff09\u2462Ctrl+Shift+I\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30d6\u3067404\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u2014\u2014\u3053\u306e3\u70b9\u3092\u9806\u756a\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-02\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">02<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BG REPEAT<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u80cc\u666f\u753b\u50cf\u306e\u7e70\u308a\u8fd4\u3057\u3092\u8a2d\u5b9a\u3059\u308b\uff08background-repeat\uff09<\/span>\n  <span class=\"section-desc\">\u30bf\u30a4\u30eb\u30d1\u30bf\u30fc\u30f3\u30fb\u6a2a\u7e70\u308a\u8fd4\u3057\u30fb\u7e70\u308a\u8fd4\u3057\u306a\u3057\u306e3\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3044\u5206\u3051\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">background-image\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u52d5\u4f5c\u306f\u3001\u8981\u7d20\u3092\u57cb\u3081\u5c3d\u304f\u3059\u3088\u3046\u753b\u50cf\u304c<strong>\u30bf\u30a4\u30eb\u72b6\u306b\u7e70\u308a\u8fd4\u3057\u8868\u793a<\/strong>\u3055\u308c\u307e\u3059\u3002<code>background-repeat<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3053\u306e\u7e70\u308a\u8fd4\u3057\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>background-repeat<\/strong>\uff1aCSS\u3067\u80cc\u666f\u753b\u50cf\u306e\u7e70\u308a\u8fd4\u3057\u65b9\u5411\u3092\u5236\u5fa1\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u4e3b\u306a\u5024\u306f\u300crepeat\uff08\u4e21\u65b9\u5411\u306b\u7e70\u308a\u8fd4\u3057\uff09\u300d\u300cno-repeat\uff08\u7e70\u308a\u8fd4\u3057\u306a\u3057\uff09\u300d\u300crepeat-x\uff08\u6a2a\u65b9\u5411\u306e\u307f\uff09\u300d\u300crepeat-y\uff08\u7e26\u65b9\u5411\u306e\u307f\uff09\u300d\u300cspace\uff08\u5747\u7b49\u914d\u7f6e\uff09\u300d\u300cround\uff08\u30ea\u30b5\u30a4\u30ba\u3057\u3066\u5747\u7b49\u914d\u7f6e\uff09\u300d\u3067\u3059\u3002\u5927\u304d\u306a\u5199\u771f\u3092\u30d2\u30fc\u30ed\u30fc\u753b\u50cf\u3068\u3057\u3066\u4f7f\u3046\u5834\u5408\u306fno-repeat\u304c\u57fa\u672c\u8a2d\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<table>\n<thead><tr><th>\u5024<\/th><th>\u8868\u793a\u306e\u3057\u304b\u305f<\/th><th>\u4f7f\u3044\u3069\u3053\u308d<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>repeat\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09<\/td><td>\u7e26\u6a2a\u4e21\u65b9\u5411\u306b\u7e70\u308a\u8fd4\u3059\uff08\u30bf\u30a4\u30eb\u72b6\uff09<\/td><td>\u5c0f\u3055\u306a\u30d1\u30bf\u30fc\u30f3\u30fb\u30c6\u30af\u30b9\u30c1\u30e3\u753b\u50cf<\/td><\/tr>\n<tr><td>no-repeat<\/td><td>1\u679a\u3060\u3051\u8868\u793a\uff08\u7e70\u308a\u8fd4\u3057\u306a\u3057\uff09<\/td><td>\u30d2\u30fc\u30ed\u30fc\u753b\u50cf\u30fb\u30ed\u30b4\u30fb\u30a2\u30a4\u30b3\u30f3<\/td><\/tr>\n<tr><td>repeat-x<\/td><td>\u6a2a\u65b9\u5411\u3060\u3051\u7e70\u308a\u8fd4\u3059<\/td><td>\u6a2a\u30b9\u30c8\u30e9\u30a4\u30d7\u30fb\u30d8\u30c3\u30c0\u30fc\u30e9\u30a4\u30f3<\/td><\/tr>\n<tr><td>repeat-y<\/td><td>\u7e26\u65b9\u5411\u3060\u3051\u7e70\u308a\u8fd4\u3059<\/td><td>\u7e26\u30b9\u30c8\u30e9\u30a4\u30d7\u30fb\u30b5\u30a4\u30c9\u30d0\u30fc\u80cc\u666f<\/td><\/tr>\n<tr><td>space<\/td><td>\u5747\u7b49\u914d\u7f6e\uff08\u7aef\u306b\u4f59\u767d\u3042\u308a\uff09<\/td><td>\u30a2\u30a4\u30b3\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u304d\u308c\u3044\u306b\u4e26\u3079\u308b<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#89b4fa;\">.hero<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-repeat<\/span>: <span style=\"color:#fab387;\">no-repeat<\/span>;   <span style=\"color:#6c7086;\">\/* \u7e70\u308a\u8fd4\u3057\u306a\u3057\uff08\u30d2\u30fc\u30ed\u30fc\u63a8\u5968\uff09 *\/<\/span>\n}\n\n<span style=\"color:#89b4fa;\">.pattern-bg<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/dots.png'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-repeat<\/span>: <span style=\"color:#fab387;\">repeat<\/span>;        <span style=\"color:#6c7086;\">\/* \u30bf\u30a4\u30eb\u72b6\u7e70\u308a\u8fd4\u3057 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">20px 20px<\/span>;    <span style=\"color:#6c7086;\">\/* \u7e70\u308a\u8fd4\u3057\u5358\u4f4d\u306e\u30b5\u30a4\u30ba *\/<\/span>\n}\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-03\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">03<\/span>\n  <span class=\"section-label\" style=\"display:block;\">FULLSCREEN BG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\u8868\u793a\u3059\u308b\u5b9f\u8df5\u5b9f\u88c5\uff08cover\u30fb100vh\uff09<\/span>\n  <span class=\"section-desc\">\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u306e\u5b8c\u5168\u306a\u5b9f\u88c5\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30fc\u3057\u3066\u4f7f\u3046<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Web\u30b5\u30a4\u30c8\u306e\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3067\u6700\u3082\u591a\u304f\u4f7f\u308f\u308c\u308b\u80cc\u666f\u753b\u50cf\u306e\u5b9f\u88c5\u304c\u300c\u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u300d\u3067\u3059\u3002<strong>background-size: cover + height: 100vh<\/strong>\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u57fa\u672c\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>100vh\uff08100\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u9ad8\u3055\uff09<\/strong>\uff1aCSS\u306e\u5358\u4f4d\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u8868\u793a\u30a8\u30ea\u30a2\uff08\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\uff09\u306e\u9ad8\u3055\u306e100%\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u300cheight: 100vh\u300d\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u9ad8\u3055\u3068\u540c\u3058\u9ad8\u3055\u306e\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002\u30b9\u30de\u30db\u3067\u3082PC\u3067\u3082\u3001\u753b\u9762\u3044\u3063\u3071\u3044\u306e\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u3092\u4f5c\u308b\u969b\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* \u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc\u80cc\u666f\u306e\u5b8c\u5168\u5b9f\u88c5\u30b3\u30fc\u30c9 *\/<\/span>\n<span style=\"color:#89b4fa;\">.hero<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;        <span style=\"color:#6c7086;\">\/* \u8981\u7d20\u5168\u4f53\u3092\u8986\u3046 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-repeat<\/span>: <span style=\"color:#fab387;\">no-repeat<\/span>;   <span style=\"color:#6c7086;\">\/* \u7e70\u308a\u8fd4\u3057\u306a\u3057 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center<\/span>;    <span style=\"color:#6c7086;\">\/* \u4e2d\u592e\u306b\u914d\u7f6e *\/<\/span>\n  <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">100vh<\/span>;              <span style=\"color:#6c7086;\">\/* \u753b\u9762\u306e\u9ad8\u3055100% *\/<\/span>\n  <span style=\"color:#a6e3a1;\">display<\/span>: <span style=\"color:#fab387;\">flex<\/span>;\n  <span style=\"color:#a6e3a1;\">align-items<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">justify-content<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n}\n\n<span style=\"color:#6c7086;\">\/* HTML\u69cb\u9020 *\/<\/span>\n&lt;<span style=\"color:#cba6f7;\">section<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"hero\"<\/span>&gt;\n  &lt;<span style=\"color:#cba6f7;\">div<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"hero-content\"<\/span>&gt;\n    &lt;<span style=\"color:#cba6f7;\">h1<\/span>&gt;\u30e1\u30a4\u30f3\u30ad\u30e3\u30c3\u30c1\u30b3\u30d4\u30fc&lt;\/<span style=\"color:#cba6f7;\">h1<\/span>&gt;\n    &lt;<span style=\"color:#cba6f7;\">a<\/span> <span style=\"color:#89b4fa;\">href<\/span>=<span style=\"color:#a6e3a1;\">\"#\"<\/span>&gt;\u7121\u6599\u76f8\u8ac7\u3059\u308b&lt;\/<span style=\"color:#cba6f7;\">a<\/span>&gt;\n  &lt;\/<span style=\"color:#cba6f7;\">div<\/span>&gt;\n&lt;\/<span style=\"color:#cba6f7;\">section<\/span>&gt;\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3-2. \u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u91cd\u306d\u305f\u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u767d\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u80cc\u666f\u753b\u50cf\u306e\u4e0a\u306b\u7f6e\u304f\u3068\u304d\u3001\u753b\u50cf\u304c\u660e\u308b\u3044\u3068\u6587\u5b57\u304c\u8aad\u307f\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002<strong>background-image\u306b\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u91cd\u306d\u308b<\/strong>\u3053\u3068\u3067\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u8996\u8a8d\u6027\u3092\u9ad8\u3081\u3064\u3064\u753b\u50cf\u306e\u96f0\u56f2\u6c17\u3082\u6d3b\u304b\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* \u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\uff0b\u80cc\u666f\u753b\u50cf\u306e\u91cd\u306d\u5408\u308f\u305b *\/<\/span>\n<span style=\"color:#89b4fa;\">.hero-with-overlay<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>:\n    linear-gradient(\n      to bottom,\n      rgba(<span style=\"color:#fab387;\">0, 0, 0, 0.55<\/span>) 0%,\n      rgba(<span style=\"color:#fab387;\">0, 0, 0, 0.25<\/span>) 100%\n    ),\n    url(<span style=\"color:#a6e3a1;\">'images\/hero.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">background-repeat<\/span>: <span style=\"color:#fab387;\">no-repeat<\/span>;\n  <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">100vh<\/span>;\n  <span style=\"color:#a6e3a1;\">color<\/span>: <span style=\"color:#fab387;\">#fff<\/span>;\n  <span style=\"color:#a6e3a1;\">display<\/span>: <span style=\"color:#fab387;\">flex<\/span>;\n  <span style=\"color:#a6e3a1;\">align-items<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">justify-content<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">text-align<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n}\n<\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>HTML\u306e\u80cc\u666f\u753b\u50cf<\/strong><br><span style=\"font-size:12px;\">url(hero.jpg)<\/span><\/div>  <div class=\"g-flow-arrow\">&#8594;<\/div>  <div class=\"g-flow-item\"><strong>\u7dda\u5f62\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3<\/strong><br><span style=\"font-size:12px;\">rgba(0,0,0,0.55)<\/span><\/div>  <div class=\"g-flow-arrow\">&#8594;<\/div>  <div class=\"g-flow-item\"><strong>\u30c6\u30ad\u30b9\u30c8\u30fb\u30dc\u30bf\u30f3<\/strong><br><span style=\"font-size:12px;\">\u767d\u6587\u5b57\u304c\u8aad\u307f\u3084\u3059\u3044<\/span><\/div>  <div class=\"g-flow-arrow\">&#8594;<\/div>  <div class=\"g-flow-item\"><strong>\u5b8c\u6210\u3057\u305f\u30d2\u30fc\u30ed\u30fc<\/strong><br><span style=\"font-size:12px;\">\u30d7\u30ed\u54c1\u8cea\u306e\u30c7\u30b6\u30a4\u30f3<\/span><\/div>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-04\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">04<\/span>\n  <span class=\"section-label\" style=\"display:block;\">FIXED BG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u80cc\u666f\u753b\u50cf\u3092\u56fa\u5b9a\u8868\u793a\u3059\u308b\uff08background-attachment: fixed\uff09<\/span>\n  <span class=\"section-desc\">\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082\u80cc\u666f\u304c\u52d5\u304b\u306a\u3044\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u306e\u5b9f\u88c5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><code>background-attachment: fixed<\/code>\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u30da\u30fc\u30b8\u3092\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082<strong>\u80cc\u666f\u753b\u50cf\u3060\u3051\u304c\u56fa\u5b9a\u3055\u308c\u305f\u307e\u307e<\/strong>\u30b3\u30f3\u30c6\u30f3\u30c4\u3060\u3051\u304c\u52d5\u304f\u300c\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u300d\u304c\u751f\u307e\u308c\u307e\u3059\u3002\u8996\u899a\u7684\u306a\u30a4\u30f3\u30d1\u30af\u30c8\u304c\u5f37\u304f\u3001Web\u30b5\u30a4\u30c8\u306e\u30a2\u30af\u30bb\u30f3\u30c8\u3068\u3057\u3066\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>background-attachment<\/strong>\uff1a\u80cc\u666f\u753b\u50cf\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u6642\u306e\u52d5\u4f5c\u3092\u5236\u5fa1\u3059\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u300cscroll\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09\u300d\u3067\u306f\u8981\u7d20\u3068\u4e00\u7dd2\u306b\u80cc\u666f\u3082\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u3059\u3002\u300cfixed\u300d\u3067\u306f\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\uff08\u30d6\u30e9\u30a6\u30b6\u753b\u9762\uff09\u3092\u57fa\u6e96\u306b\u56fa\u5b9a\u3055\u308c\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3060\u3051\u304c\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u307e\u3059\u3002\u300clocal\u300d\u3067\u306f\u8981\u7d20\u5185\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u8ffd\u5f93\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* \u56fa\u5b9a\u80cc\u666f\uff08\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\uff09 *\/<\/span>\n<span style=\"color:#89b4fa;\">.parallax-section<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/parallax.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-attachment<\/span>: <span style=\"color:#fab387;\">fixed<\/span>;   <span style=\"color:#6c7086;\">\/* \u80cc\u666f\u3092\u56fa\u5b9a *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">min-height<\/span>: <span style=\"color:#fab387;\">400px<\/span>;\n  <span style=\"color:#a6e3a1;\">display<\/span>: <span style=\"color:#fab387;\">flex<\/span>;\n  <span style=\"color:#a6e3a1;\">align-items<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">justify-content<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n}\n\n<span style=\"color:#6c7086;\">\/* HTML: \u30bb\u30af\u30b7\u30e7\u30f3\u304c2\u3064\u3042\u308a\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u304c\u51fa\u308b *\/<\/span>\n&lt;<span style=\"color:#cba6f7;\">section<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"content-section\"<\/span>&gt;\u901a\u5e38\u306e\u30b3\u30f3\u30c6\u30f3\u30c4&lt;\/<span style=\"color:#cba6f7;\">section<\/span>&gt;\n&lt;<span style=\"color:#cba6f7;\">section<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"parallax-section\"<\/span>&gt;\u56fa\u5b9a\u80cc\u666f\u30bb\u30af\u30b7\u30e7\u30f3&lt;\/<span style=\"color:#cba6f7;\">section<\/span>&gt;\n&lt;<span style=\"color:#cba6f7;\">section<\/span> <span style=\"color:#89b4fa;\">class<\/span>=<span style=\"color:#a6e3a1;\">\"content-section\"<\/span>&gt;\u901a\u5e38\u306e\u30b3\u30f3\u30c6\u30f3\u30c4&lt;\/<span style=\"color:#cba6f7;\">section<\/span>&gt;\n<\/div>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:20px;\">&#9888;&#65039;<\/span><strong style=\"color:#dc2626;font-size:16px;\">background-attachment: fixed\u306fiOS\u3067\u52d5\u4f5c\u3057\u306a\u3044<\/strong><\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">iPhone\u3084iPad\uff08iOS Safari\uff09\u3067\u306f\u3001background-attachment: fixed\u306f\u6b63\u3057\u304f\u8868\u793a\u3055\u308c\u305a\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u6642\u306b\u80cc\u666f\u304c\u56fa\u5b9a\u3055\u308c\u306a\u3044\u4e0d\u5177\u5408\u304c\u3042\u308a\u307e\u3059\u3002iOS\u5411\u3051\u306e\u4ee3\u66ff\u624b\u6bb5\u3068\u3057\u3066\u3001JavaScript\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u91cf\u3092\u53d6\u5f97\u3057\u3066\u300ctransform: translateY()\u300d\u3067\u80cc\u666f\u753b\u50cf\u306e\u4f4d\u7f6e\u3092\u52d5\u304b\u3059Js\u88fd\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u3092\u4f7f\u3046\u304b\u3001\u30e2\u30d0\u30a4\u30eb\u3067\u306fbackground-attachment: scroll\u306b\u623b\u3059media query\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* iOS\u3078\u306efixed\u56de\u907f\u5bfe\u7b56 *\/<\/span>\n<span style=\"color:#89b4fa;\">@media<\/span> (max-width: <span style=\"color:#fab387;\">768px<\/span>) {\n  <span style=\"color:#89b4fa;\">.parallax-section<\/span> {\n    <span style=\"color:#a6e3a1;\">background-attachment<\/span>: <span style=\"color:#fab387;\">scroll<\/span>;  <span style=\"color:#6c7086;\">\/* \u30e2\u30d0\u30a4\u30eb\u306f\u901a\u5e38\u30b9\u30af\u30ed\u30fc\u30eb *\/<\/span>\n  }\n}\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-05\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">05<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BEFORE OVERLAY<\/span>\n  <span class=\"section-title\" style=\"display:block;\">::before\u64ec\u4f3c\u8981\u7d20\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u91cd\u306d\u308b<\/span>\n  <span class=\"section-desc\">background-image\u3092\u5909\u66f4\u305b\u305a\u306b\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u8ffd\u52a0\u3067\u304d\u308b\u30c6\u30af\u30cb\u30c3\u30af<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u80cc\u666f\u753b\u50cf\u3092<code>background-image<\/code>\u3067\u91cd\u306d\u308b\u65b9\u6cd5\u306e\u4ed6\u306b\u3001<code>::before<\/code>\u64ec\u4f3c\u8981\u7d20\u3092\u4f7f\u3063\u3066\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306e\u30e1\u30ea\u30c3\u30c8\u306f<strong>\u80cc\u666f\u753b\u50cf\u306eCSS\u3092\u5909\u66f4\u305b\u305a\u306b\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306e\u8272\u30fb\u900f\u660e\u5ea6\u3060\u3051\u3092\u8abf\u6574\u3067\u304d\u308b<\/strong>\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>::before\u64ec\u4f3c\u8981\u7d20<\/strong>\uff1aCSS\u3067\u8981\u7d20\u306e\u524d\u306b\u4eee\u60f3\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u633f\u5165\u3059\u308b\u30bb\u30ec\u30af\u30bf\u3002content: \"\" \u3092\u6307\u5b9a\u3057\u3066\u5b9f\u969b\u306b\u306f\u4f55\u3082\u8868\u793a\u305b\u305a\u3001position: absolute\u3067\u89aa\u8981\u7d20\u306e\u4e0a\u306b\u91cd\u306d\u308b\u3053\u3068\u3067\u3001\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\uff08\u534a\u900f\u660e\u306e\u8272\u4ed8\u304d\u30ec\u30a4\u30e4\u30fc\uff09\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002background-image\u3092\u6301\u3064\u8981\u7d20\u306e\u89aa\u306bposition: relative\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* ::before\u3092\u4f7f\u3063\u305f\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u5b9f\u88c5 *\/<\/span>\n<span style=\"color:#89b4fa;\">.hero<\/span> {\n  <span style=\"color:#a6e3a1;\">position<\/span>: <span style=\"color:#fab387;\">relative<\/span>;  <span style=\"color:#6c7086;\">\/* ::before\u306e\u57fa\u6e96\u70b9 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">100vh<\/span>;\n}\n\n<span style=\"color:#89b4fa;\">.hero::before<\/span> {\n  <span style=\"color:#a6e3a1;\">content<\/span>: <span style=\"color:#fab387;\">\"\"<\/span>;                   <span style=\"color:#6c7086;\">\/* \u5fc5\u9808: \u7a7a\u306e\u30b3\u30f3\u30c6\u30f3\u30c4 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">position<\/span>: <span style=\"color:#fab387;\">absolute<\/span>;          <span style=\"color:#6c7086;\">\/* \u89aa\u306e\u4e0a\u306b\u91cd\u306d\u308b *\/<\/span>\n  <span style=\"color:#a6e3a1;\">top<\/span>: <span style=\"color:#fab387;\">0<\/span>; <span style=\"color:#a6e3a1;\">left<\/span>: <span style=\"color:#fab387;\">0<\/span>;\n  <span style=\"color:#a6e3a1;\">width<\/span>: <span style=\"color:#fab387;\">100%<\/span>; <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">100%<\/span>;\n  <span style=\"color:#a6e3a1;\">background-color<\/span>: rgba(<span style=\"color:#fab387;\">0, 0, 0, 0.4<\/span>); <span style=\"color:#6c7086;\">\/* \u534a\u900f\u660e\u306e\u9ed2 *\/<\/span>\n}\n\n<span style=\"color:#89b4fa;\">.hero-content<\/span> {\n  <span style=\"color:#a6e3a1;\">position<\/span>: <span style=\"color:#fab387;\">relative<\/span>;  <span style=\"color:#6c7086;\">\/* ::before\u3088\u308a\u524d\u9762\u306b\u8868\u793a *\/<\/span>\n  <span style=\"color:#a6e3a1;\">z-index<\/span>: <span style=\"color:#fab387;\">1<\/span>;\n  <span style=\"color:#a6e3a1;\">color<\/span>: <span style=\"color:#fab387;\">#fff<\/span>;\n}\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\"><span style=\"font-size:18px;\">&#128161;<\/span><strong style=\"color:#16a34a;font-size:15px;\">::before\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c8\u3068linear-gradient\u3068\u306e\u4f7f\u3044\u5206\u3051<\/strong><\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">::before\u306f\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306e\u8272\u30fb\u900f\u660e\u5ea6\u3060\u3051\u3092\u72ec\u7acb\u3057\u3066CSS\u3067\u5236\u5fa1\u3067\u304d\u308b\u305f\u3081\u3001\u300c\u30db\u30d0\u30fc\u6642\u306b\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u6697\u304f\u3059\u308b\u300d\u300cJavaScript\u3067\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u8272\u3092\u52d5\u7684\u306b\u5909\u66f4\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u52d5\u7684\u306a\u6f14\u51fa\u304c\u4f5c\u308a\u3084\u3059\u3044\u3067\u3059\u3002\u4e00\u65b9\u3001linear-gradient\u91cd\u306d\u5408\u308f\u305b\u306f1\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u6e08\u3080\u305f\u3081\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u5909\u66f4\u304c\u4e0d\u8981\u306a\u9759\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306b\u306flinear-gradient\u3001\u52d5\u7684\u306b\u5909\u3048\u305f\u3044\u5834\u5408\u306f::before\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-06\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">06<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BODY BG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30da\u30fc\u30b8\u5168\u4f53\uff08body\uff09\u306e\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b<\/span>\n  <span class=\"section-desc\">\u30b5\u30a4\u30c8\u5168\u4f53\u306b\u80cc\u666f\u3092\u9069\u7528\u3059\u308bbody\u8a2d\u5b9a\u3068background-color\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u5168\u4f53\u306b\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f\u3001<code>body<\/code>\u30bf\u30b0\u306b<code>background-image<\/code>\u3092\u9069\u7528\u3057\u307e\u3059\u3002<code>background-attachment: fixed<\/code>\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082\u80cc\u666f\u753b\u50cf\u304c\u52d5\u304b\u306a\u3044\u30c7\u30b6\u30a4\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>background-color\uff08\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u30ab\u30e9\u30fc\uff09<\/strong>\uff1aCSS\u3067\u8981\u7d20\u306e\u80cc\u666f\u8272\u3092\u8a2d\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3002background-image\u3068\u540c\u6642\u306b\u6307\u5b9a\u3059\u308b\u3068\u3001\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u30fb\u900f\u660e\u90e8\u5206\u30fbcontain\u3067\u7a7a\u3044\u305f\u4f59\u767d\u306b\u80cc\u666f\u8272\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u300cbackground-color: #1a1a2e;\u300d\u306e\u3088\u3046\u306b16\u9032\u6570\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3084RGB\u5024\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u80cc\u666f\u753b\u50cf\u304c\u8aad\u307f\u8fbc\u307e\u308c\u308b\u524d\u306e\u3061\u3089\u3064\u304d\u3092\u9632\u3050\u305f\u3081\u3001\u30d2\u30fc\u30ed\u30fc\u753b\u50cf\u306b\u306f\u5fc5\u305abackground-color\u3082\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* \u30da\u30fc\u30b8\u5168\u4f53\u306b\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\uff08body\u6307\u5b9a\uff09 *\/<\/span>\n<span style=\"color:#89b4fa;\">body<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/bg-texture.jpg'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-color<\/span>: <span style=\"color:#fab387;\">#f5f5f5<\/span>;     <span style=\"color:#6c7086;\">\/* \u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u80cc\u666f\u8272 *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-attachment<\/span>: <span style=\"color:#fab387;\">fixed<\/span>;   <span style=\"color:#6c7086;\">\/* \u30b9\u30af\u30ed\u30fc\u30eb\u3067\u80cc\u666f\u56fa\u5b9a *\/<\/span>\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;\n  <span style=\"color:#a6e3a1;\">background-repeat<\/span>: <span style=\"color:#fab387;\">no-repeat<\/span>;\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center top<\/span>;\n  <span style=\"color:#a6e3a1;\">min-height<\/span>: <span style=\"color:#fab387;\">100vh<\/span>;\n}\n<\/div>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-07\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">07<\/span>\n  <span class=\"section-label\" style=\"display:block;\">RESPONSIVE BG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3068\u30e2\u30d0\u30a4\u30eb\u3067\u306e\u80cc\u666f\u6700\u9069\u5316<\/span>\n  <span class=\"section-desc\">\u30b9\u30de\u30db\u7528\u753b\u50cf\u3078\u306e\u5207\u308a\u66ff\u3048\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u5b9f\u8df5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PC\u3068\u30b9\u30de\u30db\u3067\u306f\u753b\u9762\u30b5\u30a4\u30ba\u304c\u5927\u304d\u304f\u7570\u306a\u308b\u305f\u3081\u3001\u540c\u3058\u80cc\u666f\u753b\u50cf\u3092\u4f7f\u3046\u3068<strong>\u30b9\u30de\u30db\u3067\u306f\u5fc5\u8981\u4ee5\u4e0a\u306b\u5927\u304d\u3044\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u3080<\/strong>\u3053\u3068\u306b\u306a\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002media query\u3092\u4f7f\u3063\u3066\u30e2\u30d0\u30a4\u30eb\u7528\u306e\u6700\u9069\u5316\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e2e;border-radius:10px;padding:20px 24px;margin:20px 0;font-family:monospace;font-size:14px;line-height:1.8;color:#cdd6f4;overflow-x:auto;white-space:pre;\">\n<span style=\"color:#6c7086;\">\/* PC\u5411\u3051\uff08\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30d5\u30a1\u30fc\u30b9\u30c8\uff09 *\/<\/span>\n<span style=\"color:#89b4fa;\">.hero<\/span> {\n  <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero-desktop.webp'<\/span>);\n  <span style=\"color:#a6e3a1;\">background-size<\/span>: <span style=\"color:#fab387;\">cover<\/span>;\n  <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center<\/span>;\n  <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">80vh<\/span>;\n}\n\n<span style=\"color:#6c7086;\">\/* \u30b9\u30de\u30db\u5411\u3051\uff1a\u8efd\u3044\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048 *\/<\/span>\n<span style=\"color:#89b4fa;\">@media<\/span> (max-width: <span style=\"color:#fab387;\">768px<\/span>) {\n  <span style=\"color:#89b4fa;\">.hero<\/span> {\n    <span style=\"color:#a6e3a1;\">background-image<\/span>: url(<span style=\"color:#a6e3a1;\">'images\/hero-mobile.webp'<\/span>);\n    <span style=\"color:#a6e3a1;\">background-position<\/span>: <span style=\"color:#fab387;\">center top<\/span>; <span style=\"color:#6c7086;\">\/* \u4e0a\u90e8\u3092\u512a\u5148\u8868\u793a *\/<\/span>\n    <span style=\"color:#a6e3a1;\">background-attachment<\/span>: <span style=\"color:#fab387;\">scroll<\/span>;   <span style=\"color:#6c7086;\">\/* iOS\u306efixed\u554f\u984c\u3092\u56de\u907f *\/<\/span>\n    <span style=\"color:#a6e3a1;\">height<\/span>: <span style=\"color:#fab387;\">60vh<\/span>;\n  }\n}\n<\/div>\n\n\n\n<table>\n<thead><tr><th>\u6700\u9069\u5316\u624b\u6cd5<\/th><th>\u524a\u6e1b\u52b9\u679c<\/th><th>\u5b9f\u88c5\u30b3\u30b9\u30c8<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u30e2\u30d0\u30a4\u30eb\u7528\u753b\u50cf\u3092\u5225\u9014\u7528\u610f\uff081\/4\u30b5\u30a4\u30ba\uff09<\/td><td>\u30c7\u30fc\u30bf\u91cf70%\u524a\u6e1b<\/td><td>\u4e2d\uff08\u753b\u50cf\u3092\u5225\u9014\u4f5c\u6210\uff09<\/td><\/tr>\n<tr><td>WebP\u5f62\u5f0f\u306b\u5909\u63db<\/td><td>\u540c\u753b\u8cea\u3067JPEG\u6bd430\u301c40%\u524a\u6e1b<\/td><td>\u4f4e\uff08\u5909\u63db\u30c4\u30fc\u30eb\u4f7f\u7528\uff09<\/td><\/tr>\n<tr><td>background-size cover\u3067\u30ea\u30b5\u30a4\u30ba<\/td><td>\u30af\u30ea\u30c3\u30d7\u3067\u8868\u793a\u6700\u9069\u5316<\/td><td>\u306a\u3057\uff08CSS\u306e\u307f\uff09<\/td><\/tr>\n<tr><td>Lazy loading\uff08JS\uff09<\/td><td>\u521d\u671f\u8868\u793a\u30c7\u30fc\u30bf\u524a\u6e1b<\/td><td>\u4e2d\uff08JS\u5b9f\u88c5\uff09<\/td><\/tr>\n<tr><td>background-color\u3092\u8a2d\u5b9a<\/td><td>\u8aad\u307f\u8fbc\u307f\u4e2d\u306e\u767d\u98db\u3073\u9632\u6b62\uff08UX\u6539\u5584\uff09<\/td><td>\u4f4e\uff081\u884c\u8ffd\u52a0\uff09<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=cc-html-bg-fullscreen&#038;blog_slug=cc-html-bg-fullscreen\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_campaign=cc-html-bg-fullscreen&#038;utm_content=h2-banner-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n<div id=\"sec-08\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">08<\/span>\n  <span class=\"section-label\" style=\"display:block;\">CLAUDE CODE HTML BG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">Claude Code\u3067HTML\u80cc\u666f\u5b9f\u88c5\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b<\/span>\n  <span class=\"section-desc\">\u65e5\u672c\u8a9e\u3067\u300c\u3053\u3093\u306a\u80cc\u666f\u306b\u3057\u305f\u3044\u300d\u3068\u4f1d\u3048\u308b\u3060\u3051\u3067CSS\u304c\u5b8c\u6210<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d2\u30fc\u30ed\u30fc\u80cc\u666f\u30fb\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u30fb\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u6bce\u56de\u624b\u4f5c\u696d\u3067CSS\u3092\u66f8\u304f\u3068\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002<strong>Claude Code\u3092\u4f7f\u3048\u3070\u3001\u65e5\u672c\u8a9e\u3067\u30c7\u30b6\u30a4\u30f3\u8981\u4ef6\u3092\u4f1d\u3048\u308b\u3060\u3051\u3067\u5b8c\u5168\u306aHTML\/CSS\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u751f\u6210<\/strong>\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u30d2\u30fc\u30ed\u30fc\u30a8\u30ea\u30a2\u306b\u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\u3067\u8a2d\u5b9a\u3057\u3066\u3002\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3082\u91cd\u306d\u3066\u767d\u3044\u6587\u5b57\u304c\u8aad\u3081\u308b\u3088\u3046\u306b\u3057\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u30b9\u30de\u30db\u3067\u306f\u5225\u306e\u8efd\u3044\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u308bmedia query\u3082\u66f8\u3044\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300cbackground-attachment: fixed\u3067\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u3092\u5b9f\u88c5\u3057\u3066\u3002iOS\u306e\u4e0d\u5177\u5408\u3092\u56de\u907f\u3059\u308b\u30b3\u30fc\u30c9\u3082\u542b\u3081\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c::before\u64ec\u4f3c\u8981\u7d20\u3067\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u5b9f\u88c5\u3057\u3066\u3002\u30db\u30d0\u30fc\u6642\u306b\u900f\u660e\u5ea6\u304c\u5909\u308f\u308b\u3088\u3046\u306b\u3057\u3066\u300d<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c\u3053\u306e\u80cc\u666f\u753b\u50cf\u306e\u8a2d\u5b9a\u3092WebP\u5bfe\u5fdc\u306b\u5909\u3048\u3066\u3002JPEG\u306efallback\u3082\u66f8\u3044\u3066\u300d<\/span><\/div>\n\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u306b\u4fbf\u5229\u306a\u306e\u304c\u300c\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\u300d\u30c7\u30d0\u30c3\u30b0\u652f\u63f4\u3067\u3059\u3002\u300cbackground-image\u3092\u8a2d\u5b9a\u3057\u305f\u306e\u306b\u8868\u793a\u3055\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u554f\u984c\u306e\u539f\u56e0\uff08\u30d1\u30b9\u30df\u30b9\u30fb\u9ad8\u30550\u30fb\u66f8\u5f0f\u30a8\u30e9\u30fc\u7b49\uff09\u3092Claude Code\u306b\u7279\u5b9a\u3057\u3066\u3082\u3089\u3044\u3001\u4fee\u6b63\u6e08\u307f\u306e\u30b3\u30fc\u30c9\u3092\u8fd4\u3057\u3066\u3082\u3089\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u306eLP\u30fb\u30b3\u30fc\u30dd\u30ec\u30fc\u30c8\u30b5\u30a4\u30c8\u306e\u30d2\u30fc\u30ed\u30fc\u80cc\u666f\u66f4\u65b0\u4f5c\u696d\u306f\u3001\u4ee5\u524d\u306f\u30c7\u30b6\u30a4\u30ca\u30fc+\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u534a\u65e5\u304b\u304b\u3063\u3066\u3044\u307e\u3057\u305f\u3002Claude Code\u3092\u5c0e\u5165\u3057\u3066\u304b\u3089\u306f\u300c\u3053\u306e\u753b\u50cf\u3067\u30d2\u30fc\u30ed\u30fc\u80cc\u666f\u3092\u5b9f\u88c5\u3057\u3066\u3002\u30b9\u30de\u30db\u6700\u9069\u5316\u3068\u6697\u3044\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3082\u4ed8\u3051\u3066\u300d\u3068\u6307\u793a\u3059\u308b\u3060\u3051\u306730\u5206\u4ee5\u5185\u306b\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-image\u306e\u57fa\u672c<\/strong>\u306furl()\u3067\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u30fbstyle\u30fb\u5916\u90e8CSS\u306e3\u7b87\u6240\u306b\u66f8\u3051\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-repeat: no-repeat<\/strong>\u304c\u5927\u304d\u306a\u5199\u771f\u306e\u57fa\u672c\u3002\u5c0f\u30d1\u30bf\u30fc\u30f3\u753b\u50cf\u306frepeat\u3067\u30bf\u30a4\u30eb\u8868\u793a<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u5168\u753b\u9762\u30d2\u30fc\u30ed\u30fc<\/strong>\u306fbackground-size: cover + height: 100vh + background-position: center\u306e\u7d44\u307f\u5408\u308f\u305b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4<\/strong>\u306flinear-gradient\u3092\u91cd\u306d\u308b\u304bbackground-image\u306blinear-gradient\u3068\u753b\u50cf\u3092\u4e26\u3079\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>background-attachment: fixed<\/strong>\u3067\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u52b9\u679c\u3002iOS Safari\u3067\u306fscroll\u306b\u623b\u3059media query\u304c\u5fc5\u8981<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>::before\u64ec\u4f3c\u8981\u7d20<\/strong>\u3067\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3092\u8ffd\u52a0\u3002z-index\u3068position: relative\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u5fc5\u9808<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc<\/strong>\u306fmedia query\u3067\u30b9\u30de\u30db\u7528\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u3002WebP\u5f62\u5f0f\u3067\u5bb9\u91cf\u524a\u6e1b<\/span><\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">HTML\u306e\u80cc\u666f\u753b\u50cf\u5b9f\u88c5\u30fbLP\u6539\u5584\u3092Claude Code\u00d7AI\u9b3c\u7ba1\u7406\u3067\u9ad8\u901f\u5316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d2\u30fc\u30ed\u30fc\u80cc\u666f\u30fb\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u30fb\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306a\u3069\u3001Web\u30b5\u30a4\u30c8\u306eCSS\u5b9f\u88c5\u3092Claude Code\u3067\u81ea\u52d5\u751f\u6210\u30fb\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">LP\u6539\u5584\u30fb\u30b3\u30fc\u30dd\u30ec\u30fc\u30c8\u30b5\u30a4\u30c8\u306e\u30c7\u30b6\u30a4\u30f3\u5909\u66f4\u306f\u3001Claude Code\u3078\u306e\u65e5\u672c\u8a9e\u6307\u793a\u3067\u5927\u5e45\u306b\u5de5\u6570\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002\u300c\u3053\u306e\u80cc\u666f\u753b\u50cf\u3067\u3053\u3093\u306a\u30c7\u30b6\u30a4\u30f3\u306b\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u8981\u671b\u3092\u5177\u4f53\u7684\u306b\u4f1d\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u7121\u6599\u76f8\u8ac7\u3067\u3054\u8981\u4ef6\u3092\u304a\u805e\u304d\u3057\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);border-radius:16px;padding:36px 32px;margin:48px 0 16px;color:#fff;\">\n  <p style=\"font-size:13px;font-weight:700;color:#dc2626;letter-spacing:2px;margin:0 0 12px;\">NEXT STEP<\/p>\n  <p style=\"font-size:22px;font-weight:800;line-height:1.5;margin:0 0 20px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3092\u3001\u3042\u306a\u305f\u306e\u30d3\u30b8\u30cd\u30b9\u3067<br>\u5b9f\u8df5\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n  <div style=\"background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);border-radius:12px;padding:24px;max-width:560px;margin:0 auto;\">\n    <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">AI\u6d3b\u7528\u3092\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9\u3078<\/p>\n    <p style=\"font-size:20px;font-weight:800;margin:0 0 12px;\">AI\u9b3c\u7ba1\u7406<\/p>\n    <p style=\"font-size:14px;color:rgba(255,255,255,0.75);margin:0 0 20px;line-height:1.7;\">Claude Code\u30fbCowork\u5c0e\u5165\u652f\u63f4\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u6d78\u900f\u307e\u3067\u5b9f\u8df5\u30d9\u30fc\u30b9\u3067\u4f34\u8d70\u3002\u300c\u81ea\u793e\u3067\u56de\u305b\u308b\u7d44\u7e54\u300d\u309290\u65e5\u3067\u4f5c\u308b\u7d4c\u55b6\u8005\u5411\u3051\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3002<\/p>\n    <div style=\"text-align:center;\">\n      <a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=article&utm_campaign=cc-html-bg-fullscreen&utm_content=next-step-cta\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AI\u9b3c\u7ba1\u7406\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q. HTML\u306ebody\u5168\u4f53\u306b\u80cc\u666f\u753b\u50cf\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. body\u30bb\u30ec\u30af\u30bf\u306bbackground-image\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u300cbody { background-image: url('images\/bg.jpg'); background-size: cover; background-attachment: fixed; background-position: center; min-height: 100vh; }\u300d\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u30da\u30fc\u30b8\u5168\u4f53\u306b\u80cc\u666f\u753b\u50cf\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082\u80cc\u666f\u304c\u52d5\u304b\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u3044\u5834\u5408\u306fbackground-attachment: fixed\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u80cc\u666f\u753b\u50cf\u3092\u5168\u753b\u9762\uff08\u30d6\u30e9\u30a6\u30b6\u306e\u5e45\u30fb\u9ad8\u3055\u3044\u3063\u3071\u3044\uff09\u306b\u8868\u793a\u3059\u308bCSS\u306f\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u300cbackground-size: cover; background-repeat: no-repeat; background-position: center; height: 100vh;\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u57fa\u672c\u3067\u3059\u3002cover\u306f\u8981\u7d20\u5168\u4f53\u3092\u8986\u3046\u3088\u3046\u753b\u50cf\u3092\u62e1\u5927\u30fb\u7e2e\u5c0f\u3057\u3001100vh\u306f\u30d6\u30e9\u30a6\u30b6\u753b\u9762\u306e\u9ad8\u3055100%\u3092\u610f\u5473\u3057\u307e\u3059\u3002div\u3084section\u306b\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306fheight: 100vh\u3001body\u306b\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306fmin-height: 100vh\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. background-image\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u539f\u56e0\u3068\u89e3\u6c7a\u65b9\u6cd5\u306f\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u4e3b\u306a\u539f\u56e0\u306f\u2460\u753b\u50cf\u30d1\u30b9\u304c\u9593\u9055\u3063\u3066\u3044\u308b\uff08\u5927\u6587\u5b57\u5c0f\u6587\u5b57\u30fb\u62e1\u5f35\u5b50\u30fb\u30d5\u30a9\u30eb\u30c0\u968e\u5c64\u3092\u78ba\u8a8d\uff09\u2461\u5bfe\u8c61\u8981\u7d20\u306eheight\/min-height\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\uff08\u9ad8\u3055\u304c0\u3060\u3068\u898b\u3048\u306a\u3044\uff09\u2462background-color\u304c\u753b\u50cf\u306e\u4e0a\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\uff08background-image\u306fbackground-color\u306e\u4e0a\u306b\u8868\u793a\u3055\u308c\u308b\u305f\u3081\u901a\u5e38\u306f\u554f\u984c\u306a\u3044\u304c\u3001opacity\u7b49\u3067\u96a0\u308c\u308b\u3053\u3068\u304c\u3042\u308b\uff09\u2014\u2014\u306e3\u3064\u3067\u3059\u3002F12\u958b\u767a\u8005\u30c4\u30fc\u30eb\u306eNetwork\u30bf\u30d6\u3067404\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u3082\u80cc\u666f\u753b\u50cf\u304c\u56fa\u5b9a\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308bCSS\u306f\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u300cbackground-attachment: fixed\u300d\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001iPhone\u3084iPad\uff08iOS Safari\uff09\u3067\u306f\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u306a\u3044\u305f\u3081\u3001\u30e2\u30d0\u30a4\u30eb\u3067\u306f\u300c@media (max-width: 768px) { \u8981\u7d20 { background-attachment: scroll; } 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