{"id":8830,"date":"2025-05-12T11:39:00","date_gmt":"2025-05-12T02:39:00","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=8830"},"modified":"2025-05-28T23:00:06","modified_gmt":"2025-05-28T14:00:06","slug":"web-direction-guide04","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/info\/web-direction-guide04\/","title":{"rendered":"\u300cWeb\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u5fc5\u643a \u2500 \u73fe\u5834\u7d4c\u9a13\u304b\u3089\u5c0e\u3044\u305f\u201c\u30d5\u30ed\u30f3\u30c8\u5236\u4f5c \u5b8c\u5168\u30ac\u30a4\u30c9\u201d\u300d\u3000Vol.4\u3000\u8efd\u304f\u3066\u5d29\u308c\u306b\u304f\u3044CSS\u8a2d\u8a08 \u2500 \u8907\u96d1\u306a\u30c7\u30b6\u30a4\u30f3\u3092\u652f\u3048\u308b\u5b9f\u88c5\u306e\u5de5\u592b\u3068\u306f\uff1f"},"content":{"rendered":"<div class=\"the_content\">\n<h2 class=\"wp-block-heading\">1. 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class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-medium\"><a href=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-1-300x225.png\" alt=\"\" class=\"wp-image-8835\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-1-300x225.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-1.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>\u305f\u3068\u3048\u3070\u3001\u307e\u3063\u305f\u304f\u540c\u3058\u3088\u3046\u306b\u898b\u3048\u308b\u30ab\u30fc\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8\u3067\u3082\u2500\u2500<br>\u7247\u65b9\u306f\u30c6\u30ad\u30b9\u30c8\u91cf\u304c\u5909\u308f\u3063\u3066\u3082\u5d29\u308c\u305a\u3001\u4fee\u6b63\u3082\u7c21\u5358\u3002<br>\u3082\u3046\u7247\u65b9\u306f\u3001\u4e00\u6587\u8ffd\u52a0\u3057\u305f\u3060\u3051\u3067\u9ad8\u3055\u304c\u30ba\u30ec\u3001\u4f59\u767d\u3082\u30ac\u30bf\u30ac\u30bf\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5dee\u3092\u751f\u3080\u306e\u304c\u3001<strong>CSS\u8a2d\u8a08\u306e\u8003\u3048\u65b9<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u5b9f\u88c5\u8005\u3068\u3057\u3066\u65e5\u3005\u610f\u8b58\u3057\u3066\u3044\u308b\u300c\u8efd\u304f\u3066\u5d29\u308c\u306b\u304f\u3044CSS\u300d\u306e\u5de5\u592b\u306b\u3064\u3044\u3066\u3001<br>\u5177\u4f53\u7684\u306a\u4f8b\u3092\u4ea4\u3048\u306a\u304c\u3089\u3001<strong>\u6280\u8853\u7684\u3059\u304e\u305a\u30fb\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u8996\u70b9\u3067\u308f\u304b\u308b\u5f62<\/strong>\u3067\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u7ae0\u3067\u306f\u307e\u305a\u3001\u79c1\u305f\u3061\u304c\u8907\u96d1\u306a\u30c7\u30b6\u30a4\u30f3\u306b\u5bfe\u3057\u3066\u300c\u3069\u3046\u3084\u3063\u3066CSS\u3092\u8efd\u304f\u4fdd\u3063\u3066\u3044\u308b\u304b\u300d\u306b\u3064\u3044\u3066\u304a\u8a71\u3057\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u8907\u96d1\u306aUI\u3092\u201c\u8efd\u304f\u4fdd\u3064\u201d\u305f\u3081\u306b\u3084\u3063\u3066\u3044\u308b\u3053\u3068<\/h2>\n\n\n\n<p>\u300cCSS\u3063\u3066\u3001\u7d50\u5c40\u898b\u305f\u76ee\u3092\u6574\u3048\u308b\u3060\u3051\u3067\u3057\u3087\uff1f\u300d\u2500\u2500\u305d\u3046\u601d\u308f\u308c\u304c\u3061\u3067\u3059\u304c\u3001\u5b9f\u88c5\u8005\u3068\u3057\u3066\u306f<strong>\u201c\u6574\u3063\u305f\u898b\u305f\u76ee\u3092\u3001\u5d29\u308c\u306b\u304f\u304f\u30fb\u4fdd\u5b88\u3057\u3084\u3059\u304f\u7dad\u6301\u3059\u308b\u3053\u3068\u201d<\/strong>\u304c\u4f55\u3088\u308a\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u3001\u60c5\u5831\u91cf\u306e\u591a\u3044\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\u3084\u3001\u8907\u96d1\u306a\u30ab\u30fc\u30c9\u30fb\u30ea\u30b9\u30c8\u69cb\u6210\u3092\u6301\u3064UI\u3067\u306f\u3001<strong>CSS\u8a2d\u8a08\u306e\u826f\u3057\u60aa\u3057\u304c\u305d\u306e\u5f8c\u306e\u904b\u7528\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059<\/strong>\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u79c1\u304c\u5b9f\u88c5\u6642\u306b\u610f\u8b58\u3057\u3066\u3044\u308b\u300cUI\u3092\u8efd\u304f\u4fdd\u3064\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u8a2d\u8a08\u65b9\u91dd\u300d\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u5171\u901a\u30d1\u30fc\u30c4\u306f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5316\u3057\u3066\u518d\u5229\u7528<\/h3>\n\n\n\n<p>\u4f3c\u305f\u3088\u3046\u306a\u30dc\u30bf\u30f3\u3084\u30ab\u30fc\u30c9\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u305e\u308c\u306b\u500b\u5225\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u5f53\u3066\u3066\u3044\u304f\u3068\u3001<strong>CSS\u304c\u80a5\u5927\u5316\u3057\u3001\u66f4\u65b0\u30df\u30b9\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u79c1\u306f\u3001\u305f\u3068\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30eb\u30fc\u30eb\u3092\u8a2d\u3051\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>.btn-primary<\/code> \u3084 <code>.card--feature<\/code> \u306a\u3069\u3001<strong>\u5f79\u5272\u30d9\u30fc\u30b9\u306e\u30af\u30e9\u30b9\u3067\u30d1\u30fc\u30c4\u5316<\/strong><\/li>\n\n\n\n<li>\u5fae\u5999\u306b\u7570\u306a\u308b\u30d1\u30bf\u30fc\u30f3\u306f\u300c\u4fee\u6b63\u300d\u3067\u306f\u306a\u304f\u300c\u62e1\u5f35\u300d\u3067\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30c7\u30b6\u30a4\u30f3\u4fee\u6b63\u304c\u5165\u3063\u3066\u3082\u3001<strong>1\u304b\u6240\u306e\u5909\u66f4\u3067\u5168\u4f53\u304c\u53cd\u6620\u3055\u308c\u308b\u3088\u3046\u306b\u69cb\u6210<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001<strong>\u201c\u4f3c\u3066\u3044\u308b\u3051\u3069\u5fae\u5999\u306b\u9055\u3046UI\u5730\u7344\u201d\u3092\u9632\u304e\u3001\u30b9\u30bf\u30a4\u30eb\u306e\u4e00\u8cab\u6027\u3082\u4fdd\u3066\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u88c5\u98fe\u7528\u30af\u30e9\u30b9\u3068\u69cb\u9020\u7528\u30af\u30e9\u30b9\u3092\u5206\u3051\u308b<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-medium\"><a href=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-2-300x225.png\" alt=\"\" class=\"wp-image-8836\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-2-300x225.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-2.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>\u305f\u3068\u3048\u3070\u3001<code>.container<\/code> \u3084 <code>.section<\/code> \u306f\u30ec\u30a4\u30a2\u30a6\u30c8\u69cb\u9020\u3092\u5b9a\u7fa9\u3059\u308b\u30af\u30e9\u30b9\u3001<br><code>.is-highlighted<\/code> \u3084 <code>.has-shadow<\/code> \u306f\u88c5\u98fe\u3092\u5b9a\u7fa9\u3059\u308b\u30af\u30e9\u30b9\u3001\u3068\u3044\u3046\u3088\u3046\u306b\u5206\u96e2\u3057\u3066\u304a\u304f\u3068\u3001<strong>\u30b9\u30bf\u30a4\u30eb\u306e\u5207\u308a\u66ff\u3048\u3084\u5236\u5fa1\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5206\u96e2\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u3068\u3001\u300c\u3061\u3087\u3063\u3068\u3060\u3051\u30c7\u30b6\u30a4\u30f3\u5909\u3048\u305f\u3044\u306e\u306b\u3001\u5168\u4f53\u306b\u5f71\u97ff\u304c\u51fa\u308b\u300d\u3068\u3044\u3046\u4e8b\u614b\u304c\u8d77\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u6df1\u3059\u304e\u308b\u30cd\u30b9\u30c8\uff08\u5165\u308c\u5b50\uff09\u3092\u907f\u3051\u308b<\/h3>\n\n\n\n<p><code>.a .b .c .d<\/code> \u306e\u3088\u3046\u306b\u30014\u968e\u5c64\u4ee5\u4e0a\u306e\u30bb\u30ec\u30af\u30bf\u3067\u30b9\u30bf\u30a4\u30eb\u3092\u5f53\u3066\u308b\u3088\u3046\u306a\u66f8\u304d\u65b9\u306f\u3001\u5f8c\u3067\u4fdd\u5b88\u3059\u308b\u969b\u306b\u975e\u5e38\u306b\u5384\u4ecb\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6307\u5b9a\u304c\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3059\u304e\u3066\u4f7f\u3044\u56de\u305b\u306a\u3044<\/li>\n\n\n\n<li>DOM\u69cb\u9020\u304c\u5909\u308f\u3063\u305f\u77ac\u9593\u306b\u30b9\u30bf\u30a4\u30eb\u304c\u58ca\u308c\u308b<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u6642\u306b\u3069\u3053\u304c\u5f71\u97ff\u3057\u3066\u3044\u308b\u306e\u304b\u8ffd\u3044\u3065\u3089\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u79c1\u306f\u57fa\u672c\u7684\u306b\u3001<strong>\u300c2\u968e\u5c64\u307e\u3067\uff0b\u30af\u30e9\u30b9\u6307\u5b9a\u300d\u304c\u660e\u78ba\u306b\u8aad\u3081\u308b\u7bc4\u56f2<\/strong>\u3092\u76ee\u5b89\u306b\u8a2d\u8a08\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4. !important\u306f\u6975\u529b\u4f7f\u308f\u306a\u3044<\/h3>\n\n\n\n<p>!important\u3092\u4f7f\u3048\u3070\u4e00\u6642\u7684\u306b\u30b9\u30bf\u30a4\u30eb\u3092\u5f37\u5236\u3067\u304d\u307e\u3059\u304c\u3001<strong>\u4e00\u5ea6\u4f7f\u3044\u59cb\u3081\u308b\u3068\u3001\u305d\u308c\u3092\u201c\u4e0a\u66f8\u304d\u3059\u308b\u305f\u3081\u306e\u4e0a\u66f8\u304d\u201d\u304c\u59cb\u307e\u308a\u3001\u5236\u5fa1\u304c\u52b9\u304b\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p>\u5b9f\u88c5\u8005\u3068\u3057\u3066\u306f\u3001<code>!important<\/code>\u3092\u591a\u7528\u3059\u308b\u6848\u4ef6\u307b\u3069\u300c\u30d0\u30b0\u304c\u8d77\u304d\u3084\u3059\u304f\u3001\u58ca\u3057\u3084\u3059\u3044\u300d\u5370\u8c61\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u57fa\u672c\u8a2d\u8a08\u3092\u4e01\u5be7\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001!important\u306b\u983c\u3089\u306a\u304f\u3066\u3082\u6e08\u3080\u72b6\u614b\u3092\u4f5c\u308b\u3053\u3068\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u8efd\u91cf\u304b\u3064\u67d4\u8edf\u306aCSS\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u201c\u5d29\u308c\u306b\u304f\u3044CSS\u201d\u306b\u3059\u308b\u305f\u3081\u306e\u8003\u616e\u70b9<\/h2>\n\n\n\n<p>CSS\u306f\u300c\u898b\u305f\u76ee\u3092\u4f5c\u308b\u305f\u3081\u306e\u8a00\u8a9e\u300d\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001<strong>\u305d\u306e\u898b\u305f\u76ee\u304c\u3069\u3093\u306a\u6761\u4ef6\u3067\u3082\u5d29\u308c\u306a\u3044\u3053\u3068<\/strong>\u304c\u3001\u5b9f\u88c5\u8005\u306b\u3068\u3063\u3066\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u79c1\u304c\u5b9f\u52d9\u3067\u7279\u306b\u610f\u8b58\u3057\u3066\u3044\u308b\u306e\u306f\u3001<strong>\u60f3\u5b9a\u5916\u306e\u6587\u5b57\u91cf\u30fb\u753b\u50cf\u30b5\u30a4\u30ba\u30fb\u753b\u9762\u5e45\u3067\u3082\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u7834\u7dbb\u3057\u306a\u3044\u8a2d\u8a08<\/strong>\u3092\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001\u5b9f\u969b\u306e\u73fe\u5834\u3067\u4f7f\u3063\u3066\u3044\u308b\u5177\u4f53\u7684\u306a\u624b\u6cd5\u3068\u305d\u306e\u76ee\u7684\u3092\u30bb\u30c3\u30c8\u3067\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1. <code>flex<\/code>\u3084<code>grid<\/code>\u3067\u4f59\u767d\u30fb\u914d\u7f6e\u3092\u5236\u5fa1\u3059\u308b<\/h3>\n\n\n\n<p><strong>\u76ee\u7684\uff1a\u56fa\u5b9a\u5e45\u306b\u983c\u3089\u305a\u3001\u67d4\u8edf\u306a\u914d\u7f6e\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56fa\u5b9a\u5e45\u3067\u300c\u3053\u3053\u306b3\u3064\u4e26\u3079\u308b\u300d\u3068\u6c7a\u3081\u6253\u3061\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u9577\u304f\u306a\u3063\u305f\u3068\u304d\u306b\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u305d\u306e\u305f\u3081\u3001\u57fa\u672c\u306f<code>flex<\/code>\u3084<code>grid<\/code>\u3092\u4f7f\u3063\u3066<strong>\u201c\u4f59\u767d\u3067\u8abf\u6574\u3059\u308b\u69cb\u9020\u201d<\/strong>\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udee0 <strong>\u5b9f\u52d9\u4f8b<\/strong>\uff1a\u30ab\u30fc\u30c93\u5217\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u3067\u3001\u5404\u30ab\u30fc\u30c9\u306e\u30bf\u30a4\u30c8\u30eb\u304c\u7570\u306a\u308b\u9577\u3055\u3060\u3063\u305f\u304c\u3001<code>justify-content: space-between<\/code>\u3068<code>flex-grow<\/code>\u3092\u4f75\u7528\u3059\u308b\u3053\u3068\u3067\u6574\u7136\u3068\u8868\u793a\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2. <code>aspect-ratio<\/code>\u306e\u6d3b\u7528\u3067\u753b\u50cf\u30fb\u30ab\u30fc\u30c9\u306e\u6bd4\u7387\u3092\u7dad\u6301<\/h3>\n\n\n\n<p><strong>\u76ee\u7684\uff1a\u753b\u50cf\u304c\u6f70\u308c\u305f\u308a\u3001\u7e26\u9577\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u306e\u3092\u9632\u3050<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u304c\u9032\u3093\u3060\u4eca\u3001<code>aspect-ratio<\/code>\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067<strong>\u753b\u50cf\u3084\u30ab\u30fc\u30c9\u306e\u7e26\u6a2a\u6bd4\u3092\u7dad\u6301\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3057\u305f\u3002<\/strong><\/li>\n\n\n\n<li>\u7279\u306b\u9ad8\u3055\u304c\u63c3\u308f\u306a\u3044\u3053\u3068\u3067\u3001\u8981\u7d20\u304c\u30ac\u30bf\u3064\u304fUI\u3067\u306f\u975e\u5e38\u306b\u6709\u52b9\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udee0 <strong>\u5b9f\u52d9\u4f8b<\/strong>\uff1a\u30b5\u30fc\u30d3\u30b9\u7d39\u4ecb\u306e\u30ab\u30fc\u30c9\u7fa4\u3067\u3001\u3059\u3079\u3066\u7570\u306a\u308b\u30b5\u30a4\u30ba\u306e\u753b\u50cf\u3092\u4f7f\u7528\u3057\u3066\u3044\u305f\u304c\u3001<code>aspect-ratio: 4 \/ 3<\/code>\u3067\u898b\u305f\u76ee\u306e\u7d71\u4e00\u611f\u3092\u5b9f\u73fe\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3. <code>min-width<\/code> \/ <code>max-width<\/code> \u3067\u53ef\u5909\u5e45\u306b\u5bfe\u5fdc<\/h3>\n\n\n\n<p><strong>\u76ee\u7684\uff1a\u6975\u7aef\u306b\u5c0f\u3055\u3044 or \u5927\u304d\u3044\u753b\u9762\u3067\u3082\u5d29\u308c\u306b\u304f\u304f\u3059\u308b<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3067\u306f\u3001\u5358\u306b\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001<strong>\u8981\u7d20\u3054\u3068\u306e\u6700\u5c0f\u30fb\u6700\u5927\u5e45\u306e\u5236\u9650<\/strong>\u3082\u91cd\u8981\u3067\u3059\u3002<\/li>\n\n\n\n<li>\u3053\u308c\u306b\u3088\u308a\u3001\u30a6\u30eb\u30c8\u30e9\u30ef\u30a4\u30c9\u30e2\u30cb\u30bf\u30fc\u3084\u5c0f\u578b\u30b9\u30de\u30db\u306a\u3069\u306b\u3082\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udee0 <strong>\u5b9f\u52d9\u4f8b<\/strong>\uff1a\u6a2a\u4e26\u3073\u306e\u30dc\u30bf\u30f3\u3067\u3001\u7247\u65b9\u306e\u30c6\u30ad\u30b9\u30c8\u304c\u77ed\u3059\u304e\u3066\u6975\u7aef\u306b\u5c0f\u3055\u304f\u306a\u3063\u3066\u3044\u305f\u306e\u3092\u3001<code>min-width: 120px<\/code>\u3067\u8abf\u6574\u3057\u3001\u8996\u8a8d\u6027\u3092\u78ba\u4fdd\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u300c\u5d29\u308c\u306b\u304f\u3044CSS\u300d\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3001<strong>1\u3064\u3072\u3068\u3064\u306eUI\u306b\u201c\u3086\u3089\u304e\u201d\u304c\u3042\u3063\u3066\u3082\u4fdd\u3066\u308b\u8a2d\u8a08<\/strong>\u3092\u5fc3\u304c\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u201c\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u3057\u3084\u3059\u3055\u201d\u306f\u201c\u4fee\u6b63\u306e\u3057\u3084\u3059\u3055\u201d\u3067\u3082\u3042\u308b<\/h2>\n\n\n\n<p>\u5b9f\u88c5\u306e\u73fe\u5834\u3067\u306f\u3001\u300c\u3068\u308a\u3042\u3048\u305a\u4eca\u3001\u898b\u305f\u76ee\u304c\u5408\u3063\u3066\u3044\u308c\u3070\u3044\u3044\u300d\u3068\u601d\u308f\u308c\u308b\u5834\u9762\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<br>\u3057\u304b\u3057\u3001<strong>\u305d\u306e\u201c\u3068\u308a\u3042\u3048\u305a\u201d\u306e\u7a4d\u307f\u91cd\u306d\u304c\u3001\u5f8c\u304b\u3089\u5927\u304d\u306a\u4fee\u6b63\u30b3\u30b9\u30c8\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u5d29\u308c\u3092\u751f\u3080\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d9\u30bf\u66f8\u304d\u306f\u4e00\u6642\u7684\u306b\u65e9\u304f\u3066\u3082\u3001\u9577\u671f\u7684\u306b\u306f\u7834\u7dbb\u3059\u308b<\/h3>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u30011\u30da\u30fc\u30b8\u3060\u3051\u306eLP\u3067\u3001\u540c\u3058\u3088\u3046\u306a\u30dc\u30bf\u30f3\u3084\u898b\u51fa\u3057\u304c5\u56de\u767b\u5834\u3059\u308b\u3068\u3057\u307e\u3059\u3002<br>\u30d9\u30bf\u66f8\u304d\u3067\u90fd\u5ea6\u30b9\u30bf\u30a4\u30eb\u3092\u5f53\u3066\u308c\u3070\u3001<strong>\u77ed\u671f\u7684\u306b\u306f\u3059\u3050\u5b8c\u6210\u3057\u305f\u3088\u3046\u306b\u898b\u3048\u308b<\/strong>\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3067\u3082\u5f8c\u304b\u3089\u300c\u3053\u306e\u30dc\u30bf\u30f3\u306e\u8272\u3092\u5909\u3048\u3066\u307b\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u305f\u3068\u304d\u306b\u2500\u2500<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-medium\"><a href=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-5-300x225.png\" alt=\"\" class=\"wp-image-8837\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-5-300x225.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-5.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>CSS\u30925\u304b\u6240\u66f8\u304d\u76f4\u3055\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044<\/li>\n\n\n\n<li>\u6307\u5b9a\u6f0f\u308c\u304c\u767a\u751f\u3057\u3066\u3001\u4e00\u90e8\u3060\u3051\u8272\u304c\u5909\u308f\u3089\u306a\u3044<\/li>\n\n\n\n<li>\u6700\u60aa\u306e\u5834\u5408\u3001\u4ed6\u306e\u7b87\u6240\u306b\u5f71\u97ff\u304c\u51fa\u3066\u5d29\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u304c\u3001\u672c\u5f53\u306b\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30fc\u30c9\u3092\u201c\u6574\u7406\u3055\u308c\u305f\u72b6\u614b\u201d\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u3001\u672a\u6765\u306e\u81ea\u5206\u3084\u4ed6\u306e\u5b9f\u88c5\u8005\u3092\u52a9\u3051\u308b<\/h3>\n\n\n\n<p>\u79c1\u304c\u5b9f\u88c5\u3059\u308b\u969b\u306f\u3001\u6b21\u306e\u4eba\u304c\u898b\u3066\u3082\u3059\u3050\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u914d\u616e\u3092\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540c\u3058UI\u306f\u5171\u901a\u30af\u30e9\u30b9\u3067\u7d71\u4e00<\/li>\n\n\n\n<li>\u30cd\u30b9\u30c8\u3084\u547d\u540d\u30eb\u30fc\u30eb\u306b\u4e00\u8cab\u6027\u3092\u6301\u305f\u305b\u308b<\/li>\n\n\n\n<li>\u610f\u56f3\u7684\u306a\u8abf\u6574\uff08\u4f8b\uff1a\u4e00\u6642\u7684\u306a\u30de\u30fc\u30b8\u30f3\uff09\u306f\u30b3\u30e1\u30f3\u30c8\u3067\u88dc\u8db3<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u3046\u3057\u3066\u304a\u304f\u3068\u3001<strong>\u300c\u3061\u3087\u3063\u3068\u6587\u5b57\u3092\u5909\u3048\u305f\u3044\u300d\u300c\u30dc\u30bf\u30f3\u306e\u9806\u756a\u3092\u5165\u308c\u66ff\u3048\u305f\u3044\u300d\u3060\u3051\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u308b\u30ea\u30b9\u30af\u3092\u9650\u308a\u306a\u304f\u6e1b\u3089\u305b\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u969b\u306b\u3042\u3063\u305f\u4fee\u6b63\u30c8\u30e9\u30d6\u30eb\u306e\u4f8b<\/h3>\n\n\n\n<p>\u3042\u308bWeb\u30b5\u30fc\u30d3\u30b9\u3067\u3001\u300c\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u30921\u6587\u5b57\u3060\u3051\u5909\u66f4\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u8efd\u5fae\u306a\u4fee\u6b63\u4f9d\u983c\u304c\u3042\u308a\u307e\u3057\u305f\u3002<br>\u3057\u304b\u3057\u3001\u5909\u66f4\u5f8c\u306b\u305d\u306e\u30dc\u30bf\u30f3\u3060\u30512\u884c\u306b\u306a\u308a\u3001\u5468\u56f2\u306e\u30dc\u30bf\u30f3\u3068\u9ad8\u3055\u304c\u30ba\u30ec\u3066\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u5168\u4f53\u304c\u30ac\u30bf\u3064\u3044\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u8abf\u67fb\u306e\u7d50\u679c\u3001\u30dc\u30bf\u30f3\u5e45\u304c\u30c6\u30ad\u30b9\u30c8\u91cf\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u304b\u3064<code>min-width<\/code>\u3084<code>flex<\/code>\u306b\u3088\u308b\u8abf\u6574\u304c\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u305f\u3081\u3067\u3057\u305f\u3002<br>\u6700\u7d42\u7684\u306b\u306fCSS\u306e\u66f8\u304d\u76f4\u3057\u3068\u518d\u8abf\u6574\u304c\u5fc5\u8981\u306b\u306a\u308a\u3001<strong>\u60f3\u5b9a\u306e5\u500d\u4ee5\u4e0a\u306e\u5de5\u6570\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3063\u305f<\/strong>\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<strong>\u201c\u3061\u3087\u3063\u3068\u3057\u305f\u4fee\u6b63\u201d\u304c\u5730\u96f7\u306b\u306a\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u5b9f\u88c5\u6642\u306eCSS\u8a2d\u8a08\u6b21\u7b2c\u3067\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u306b\u4f1d\u3048\u305f\u30443\u3064\u306e\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-medium\"><a href=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-6.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-6-300x225.png\" alt=\"\" class=\"wp-image-8838\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-6-300x225.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-6.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>CSS\u8a2d\u8a08\u306e\u826f\u3057\u60aa\u3057\u306f\u3001\u30b3\u30fc\u30c9\u306e\u4e2d\u306b\u6f5c\u3093\u3067\u3044\u3066<strong>\u76ee\u306b\u306f\u898b\u3048\u306b\u304f\u3044<\/strong>\u3082\u306e\u3067\u3059\u3002<br>\u3067\u3059\u304c\u3001\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u304c\u5c11\u3057\u3060\u3051\u305d\u306e\u80cc\u666f\u3092\u610f\u8b58\u3057\u3066\u304f\u3060\u3055\u308b\u3060\u3051\u3067\u3001<strong>\u5b9f\u88c5\u306e\u7cbe\u5ea6\u3082\u30b9\u30d4\u30fc\u30c9\u3082\u3001\u9a5a\u304f\u307b\u3069\u5909\u308f\u3063\u3066\u304d\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u79c1\u304c\u5b9f\u52d9\u306e\u4e2d\u3067\u300c\u3053\u3053\u3092\u5171\u6709\u3057\u3066\u3082\u3089\u3048\u308b\u3068\u672c\u5f53\u306b\u52a9\u304b\u308b\u300d\u3068\u611f\u3058\u3066\u3044\u308b\u8996\u70b9\u30923\u3064\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u201c\u305f\u3060\u7d44\u3081\u3070\u3044\u3044\u201d\u5b9f\u88c5\u3068\u3001\u201c\u8003\u3048\u629c\u3044\u305f\u201d\u5b9f\u88c5\u3067\u306f\u3001\u6839\u672c\u304b\u3089\u9055\u3046<\/h3>\n\n\n\n<p>\u540c\u3058\u3088\u3046\u306a\u898b\u305f\u76ee\u3067\u3082\u3001CSS\u306e\u69cb\u9020\u306b\u306f\u5927\u304d\u306a\u5dee\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d9\u30bf\u66f8\u304d\u3067\u305d\u306e\u5834\u3057\u306e\u304e\u306e\u5b9f\u88c5 \u2192 \u4fee\u6b63\u6642\u306b\u5d29\u308c\u308b\u30fb\u62e1\u5f35\u3067\u304d\u306a\u3044<\/li>\n\n\n\n<li>\u518d\u5229\u7528\u30fb\u67d4\u8edf\u6027\u30fb\u4fdd\u5b88\u6027\u3092\u610f\u8b58\u3057\u305f\u5b9f\u88c5 \u2192 \u9577\u671f\u7684\u306b\u5b89\u5b9a\u3057\u3001\u8ffd\u52a0\u3082\u30b9\u30e0\u30fc\u30ba<\/li>\n<\/ul>\n\n\n\n<p><strong>\u2192 <\/strong>\u30c7\u30b6\u30a4\u30f3\u304c\u3057\u3063\u304b\u308a\u3057\u3066\u3044\u3066\u3082\u3001<strong>\u5b9f\u88c5\u304c\u96d1\u3060\u3068\u54c1\u8cea\u306f\u652f\u3048\u3089\u308c\u307e\u305b\u3093\u3002<\/strong><br>\u300c\u3069\u3046\u898b\u305b\u308b\u304b\u300d\u3068\u540c\u3058\u304f\u3089\u3044\u3001\u300c\u3069\u3046\u7d44\u3080\u304b\u300d\u3082\u610f\u8b58\u3057\u3066\u3044\u305f\u3060\u3051\u308b\u3068\u52a9\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u7e70\u308a\u8fd4\u3057\u304c\u591a\u3044UI\u306f\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u300c\u5171\u901a\u5316\u300d\u3092\u898b\u8d8a\u3057\u3066\u307b\u3057\u3044<\/h3>\n\n\n\n<p>\u30dc\u30bf\u30f3\u3084\u30ab\u30fc\u30c9\u3001\u30bb\u30af\u30b7\u30e7\u30f3\u898b\u51fa\u3057\u306a\u3069\u3001<strong>\u540c\u3058\u898b\u305f\u76ee\u306e\u30d1\u30fc\u30c4\u304c\u8907\u6570\u3042\u308b\u5834\u5408<\/strong>\u3001\u90fd\u5ea6\u30b3\u30d4\u30da\u3057\u3066\u500b\u5225\u5bfe\u5fdc\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5171\u901a\u5316\u3092\u524d\u63d0\u306b\u8a2d\u8a08\u3059\u308b\u3068CSS\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u2192 <\/strong>\u30c7\u30b6\u30a4\u30f3\u6642\u3084\u30ef\u30a4\u30e4\u30fc\u306e\u6bb5\u968e\u3067\u300c\u3053\u306eUI\u306f\u5171\u901a\u3067\u3059\u300d\u3068\u660e\u8a18\u3044\u305f\u3060\u3051\u308b\u3068\u3001<strong>\u30af\u30e9\u30b9\u8a2d\u8a08\u304c\u660e\u78ba\u306b\u306a\u308a\u3001\u4fdd\u5b88\u6027\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3.\u300c\u3053\u306e\u30d1\u30fc\u30c4\u306f\u6d41\u7528\u4e88\u5b9a\u300d\u3068\u610f\u56f3\u3092\u5171\u6709\u3057\u3066\u3082\u3089\u3048\u308b\u3068\u8a2d\u8a08\u304c\u6700\u9069\u5316\u3057\u3084\u3059\u3044<\/h3>\n\n\n\n<p>\u5b9f\u88c5\u8005\u3068\u3057\u3066\u4e00\u756a\u3042\u308a\u304c\u305f\u3044\u306e\u306f\u3001\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u304b\u3089**\u201c\u4eca\u5f8c\u3069\u3046\u4f7f\u3046\u4e88\u5b9a\u304b\u201d\u306e\u60c5\u5831**\u3092\u4e8b\u524d\u306b\u3082\u3089\u3048\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<ul 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class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u3068\u5b9f\u88c5\u8005\u304c\u76ee\u7684\u3092\u5171\u6709\u3067\u304d\u308b\u3068\u3001\u4fee\u6b63\u3084\u5bfe\u5fdc\u306e\u305f\u3073\u306b\u7acb\u3061\u8fd4\u308b\u3053\u3068\u304c\u3067\u304d\u308b<strong>\u5f37\u3044CSS\u8a2d\u8a08<\/strong>\u304c\u751f\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u307e\u3068\u3081\uff1a\u76ee\u306b\u898b\u3048\u306a\u3044\u3051\u3069\u3001CSS\u8a2d\u8a08\u304cWeb\u54c1\u8cea\u3092\u5de6\u53f3\u3059\u308b<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-medium\"><a href=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-3-300x225.png\" alt=\"\" class=\"wp-image-8839\" srcset=\"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-3-300x225.png 300w, https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2025\/05\/image_4-3.png 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" 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