{"id":9772,"date":"2026-06-08T15:39:24","date_gmt":"2026-06-08T06:39:24","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=9772"},"modified":"2026-06-08T15:39:30","modified_gmt":"2026-06-08T06:39:30","slug":"css-spacing-design","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/html-css\/css-spacing-design\/","title":{"rendered":"\u300c\u3053\u3053\u306e\u4f59\u767d\u3001\u3082\u3046\u3061\u3087\u3063\u3068\u8a70\u3081\u3089\u308c\u307e\u305b\u3093\u304b\uff1f\u300d\u2500 \u4f59\u767d\u8a2d\u8a08\u3067\u5931\u6557\u3057\u306a\u3044CSS\u5b9f\u88c5"},"content":{"rendered":"<div class=\"the_content\">\n<p>\u3053\u3093\u306b\u3061\u306f\uff01\u682a\u5f0f\u4f1a\u793e\u30d5\u30a1\u30b9\u30c8\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u50cd\u304f\u304a\u304b\u3093\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5148\u65e5\u3001\u5b50\u3069\u3082\u306e\u904b\u52d5\u4f1a\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u308b\u304a\u624b\u4f1d\u3044\u3092\u3057\u305f\u3093\u3067\u3059\u304c\u3001\u300c\u6587\u5b57\u3068\u6587\u5b57\u306e\u9593\u304c\u30b9\u30ab\u30b9\u30ab\u3067\u8aad\u307f\u306b\u304f\u3044\u300d\u3068\u5148\u751f\u306b\u8a00\u308f\u308c\u3066\u4f59\u767d\u3092\u8a70\u3081\u305f\u3089\u3001\u4eca\u5ea6\u306f\u300c\u30ae\u30e5\u30c3\u3068\u3057\u3059\u304e\u3066\u7aae\u5c48\u300d\u3068\u3002\u4f59\u767d\u3063\u3066\u3001\u591a\u3059\u304e\u3066\u3082\u5c11\u306a\u3059\u304e\u3066\u3082\u30c0\u30e1\u3067\u3001\u3061\u3087\u3046\u3069\u3044\u3044\u5869\u6885\u304c\u96e3\u3057\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>Web\u30b5\u30a4\u30c8\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u3082\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u300c\u3053\u3053\u306e\u4f59\u767d\u3001\u3082\u3046\u3061\u3087\u3063\u3068\u8a70\u3081\u3089\u308c\u307e\u305b\u3093\u304b\uff1f\u300d\u3068\u8a00\u308f\u308c\u308b\u3053\u3068\u306f\u672c\u5f53\u306b\u591a\u3044\u3067\u3059\u3002\u30c7\u30b6\u30a4\u30f3\u30ab\u30f3\u30d7\u901a\u308a\u306b\u5b9f\u88c5\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u5b9f\u6a5f\u3067\u898b\u308b\u3068\u300c\u306a\u3093\u304b\u9593\u5ef6\u3073\u3057\u3066\u3044\u308b\u300d\u3068\u611f\u3058\u308b\u306e\u306f\u3001\u753b\u9762\u30b5\u30a4\u30ba\u3084\u30d5\u30a9\u30f3\u30c8\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u9055\u3044\u304c\u539f\u56e0\u3060\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3001\u3053\u306e\u3068\u304d\u5834\u5f53\u305f\u308a\u7684\u306b<code>margin<\/code>\u3092\u524a\u308b\u3068\u3001\u5225\u306e\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u5d29\u308c\u305f\u308a\u3001\u4ed6\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3068\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u72c2\u3063\u305f\u308a\u3059\u308b\u3093\u3067\u3059\u3088\u306d\u3002\u4f59\u767d\u306f\u300c\u305d\u306e\u5834\u3067\u76f4\u3059\u300d\u306e\u3067\u306f\u306a\u304f\u300c\u8a2d\u8a08\u3068\u3057\u3066\u7ba1\u7406\u3059\u308b\u300d\u3082\u306e\u3060\u3068\u3001\u4f55\u5ea6\u3082\u75db\u3044\u76ee\u3092\u898b\u3066\u5b66\u3073\u307e\u3057\u305f\u3002\u3053\u308c\u3001\u672c\u5f53\u306b\u5927\u4e8b\u306a\u3093\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u4f59\u767d\u306b\u95a2\u3059\u308b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306e\u4fee\u6b63\u4f9d\u983c\u306b\u632f\u308a\u56de\u3055\u308c\u306a\u3044\u305f\u3081\u306eCSS\u8a2d\u8a08\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u5931\u6557\uff1a\u5834\u5f53\u305f\u308a\u7684\u306amargin\u8abf\u6574<\/h2>\n\n\n\n<p>\u307e\u305a\u3001\u3084\u308a\u304c\u3061\u306a\u30d1\u30bf\u30fc\u30f3\u304b\u3089\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* Bad: \u5834\u5f53\u305f\u308a\u7684\u306a\u4f59\u767d\u8abf\u6574 *\/\n.hero-section {\n  margin-bottom: 80px;\n}\n\n\/* \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u300c\u8a70\u3081\u3066\u300d\u3068\u8a00\u308f\u308c\u3066\u76f4\u3059 *\/\n.hero-section {\n  margin-bottom: 48px;\n}\n\n\/* \u30b9\u30de\u30db\u3060\u3068\u4eca\u5ea6\u306f\u72ed\u3059\u304e\u308b\u3068\u8a00\u308f\u308c\u308b *\/\n@media (max-width: 768px) {\n  .hero-section {\n    margin-bottom: 60px;\n  }\n}\n\n\/* \u5225\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3082\u540c\u3058\u3088\u3046\u306b\u500b\u5225\u5bfe\u5fdc\u304c\u5897\u3048\u3066\u3044\u304f *\/\n.about-section {\n  margin-bottom: 72px;\n}\n\n.service-section {\n  margin-bottom: 56px;\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u554f\u984c\u306f3\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bb\u30af\u30b7\u30e7\u30f3\u3054\u3068\u306b\u9055\u3046\u4f59\u767d\u304c\u30d0\u30e9\u30d0\u30e9\u306b\u6563\u3089\u3070\u308a\u3001\u5168\u4f53\u306e\u7d71\u4e00\u611f\u304c\u306a\u304f\u306a\u308b<\/li>\n\n\n\n<li>1\u7b87\u6240\u3092\u5909\u3048\u308b\u3068\u4ed6\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3068\u306e\u30d0\u30e9\u30f3\u30b9\u304c\u5d29\u308c\u3001\u9023\u9396\u7684\u306b\u4fee\u6b63\u304c\u767a\u751f\u3059\u308b<\/li>\n\n\n\n<li>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u304c\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u6570\u3060\u3051\u5fc5\u8981\u306b\u306a\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3042\u308b\u6848\u4ef6\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u300c\u5168\u4f53\u7684\u306b\u3082\u3046\u5c11\u3057\u8a70\u3081\u3066\u307b\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u3066\u300120\u7b87\u6240\u4ee5\u4e0a\u306e<code>margin-bottom<\/code>\u3092\u500b\u5225\u306b\u4fee\u6b63\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u591c\u4e2d\u306b\u5b50\u3069\u3082\u304c\u5bdd\u305f\u5f8c\u3001CSS\u30d5\u30a1\u30a4\u30eb\u3092\u884c\u3063\u305f\u308a\u6765\u305f\u308a\u3057\u306a\u304c\u3089\u300c\u3053\u308c\u306f\u8a2d\u8a08\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u300d\u3068\u6c17\u3065\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u89e3\u6c7a\u7b56\uff1aCSS\u5909\u6570\u3067\u4f59\u767d\u3092\u30c8\u30fc\u30af\u30f3\u5316\u3059\u308b<\/h2>\n\n\n\n<p>\u4f59\u767d\u3092CSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3067\u4e00\u5143\u7ba1\u7406\u3057\u307e\u3059\u3002\u300c\u30b9\u30da\u30fc\u30b7\u30f3\u30b0\u30c8\u30fc\u30af\u30f3\u300d\u3068\u547c\u3070\u308c\u308b\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* \u4f59\u767d\u30c8\u30fc\u30af\u30f3\u306e\u5b9a\u7fa9 *\/\n:root {\n  --space-xs: 8px;\n  --space-sm: 16px;\n  --space-md: 24px;\n  --space-lg: 40px;\n  --space-xl: 64px;\n  --space-2xl: 96px;\n\n  \/* \u30bb\u30af\u30b7\u30e7\u30f3\u9593\u306e\u4f59\u767d *\/\n  --section-gap: var(--space-2xl);\n  \/* \u30b3\u30f3\u30c6\u30f3\u30c4\u5185\u306e\u4f59\u767d *\/\n  --content-gap: var(--space-lg);\n  \/* \u8981\u7d20\u9593\u306e\u4f59\u767d *\/\n  --element-gap: var(--space-md);\n}\n\n\/* \u30bf\u30d6\u30ec\u30c3\u30c8 *\/\n@media (max-width: 1024px) {\n  :root {\n    --space-xl: 48px;\n    --space-2xl: 72px;\n  }\n}\n\n\/* \u30b9\u30de\u30db *\/\n@media (max-width: 768px) {\n  :root {\n    --space-lg: 32px;\n    --space-xl: 40px;\n    --space-2xl: 56px;\n  }\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u3046\u3057\u3066\u304a\u3051\u3070\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u300c\u5168\u4f53\u7684\u306b\u3082\u3046\u5c11\u3057\u8a70\u3081\u3066\u300d\u3068\u8a00\u308f\u308c\u305f\u3068\u304d\u3001<code>:root<\/code>\u306e\u5024\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u5168\u30da\u30fc\u30b8\u306e\u4f59\u767d\u304c\u4e00\u62ec\u3067\u8abf\u6574\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* \u4f7f\u3046\u5074\u306f\u30c8\u30fc\u30af\u30f3\u3092\u53c2\u7167\u3059\u308b\u3060\u3051 *\/\n.hero-section {\n  margin-bottom: var(--section-gap);\n}\n\n.about-section {\n  margin-bottom: var(--section-gap);\n}\n\n.service-section {\n  margin-bottom: var(--section-gap);\n}\n\n\/* \u30bb\u30af\u30b7\u30e7\u30f3\u5185\u306e\u8981\u7d20\u9593 *\/\n.section-title {\n  margin-bottom: var(--element-gap);\n}\n\n.section-text {\n  margin-bottom: var(--content-gap);\n}<\/code><\/pre>\n\n\n\n<p>\u5168\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u540c\u3058<code>--section-gap<\/code>\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u300c\u5168\u4f53\u7684\u306b\u8a70\u3081\u305f\u3044\u300d\u3068\u304d\u306f<code>:root<\/code>\u306e<code>--space-2xl<\/code>\u3092<code>96px<\/code>\u2192<code>72px<\/code>\u306b\u5909\u3048\u308b\u3060\u3051\u300220\u7b87\u6240\u3092\u500b\u5225\u306b\u63a2\u3057\u3066\u76f4\u3059\u4f5c\u696d\u304c\u30bc\u30ed\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">gap\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u300c\u96a3\u308a\u5408\u3046\u8981\u7d20\u306e\u9593\u300d\u3092\u7ba1\u7406\u3059\u308b<\/h2>\n\n\n\n<p>Flexbox\u3084Grid\u3067\u5b50\u8981\u7d20\u3092\u4e26\u3079\u308b\u3068\u304d\u3001<code>margin<\/code>\u306e\u4ee3\u308f\u308a\u306b<code>gap<\/code>\u3092\u4f7f\u3046\u3068\u4f59\u767d\u7ba1\u7406\u304c\u3055\u3089\u306b\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* Bad: margin \u3067\u9593\u9694\u3092\u4f5c\u308b *\/\n.card-list {\n  display: flex;\n  flex-wrap: wrap;\n}\n\n.card-list .card {\n  margin-right: 24px;\n  margin-bottom: 24px;\n}\n\n\/* \u53f3\u7aef\u306e\u30ab\u30fc\u30c9\u306b\u4e0d\u8981\u306amargin-right\u304c\u4ed8\u304f\u554f\u984c *\/\n.card-list .card:nth-child(3n) {\n  margin-right: 0;\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* Good: gap \u3067\u9593\u9694\u3092\u4f5c\u308b *\/\n.card-list {\n  display: flex;\n  flex-wrap: wrap;\n  gap: var(--content-gap);\n}<\/code><\/pre>\n\n\n\n<p><code>gap<\/code>\u3092\u4f7f\u3046\u3068\u3001\u8981\u7d20\u3068\u8981\u7d20\u306e\u300c\u9593\u300d\u3060\u3051\u306b\u4f59\u767d\u304c\u5165\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u8981\u7d20\u306e\u524d\u3084\u6700\u5f8c\u306e\u8981\u7d20\u306e\u5f8c\u308d\u306b\u306f\u4f59\u767d\u304c\u4ed8\u304d\u307e\u305b\u3093\u3002\u53f3\u7aef\u306e\u30ab\u30fc\u30c9\u306e<code>:nth-child<\/code>\u554f\u984c\u3082\u767a\u751f\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3082\u30c8\u30fc\u30af\u30f3\u3092\u901a\u3058\u3066\u4e00\u62ec\u3067\u5909\u308f\u308a\u307e\u3059\u3002<code>--content-gap<\/code>\u304c\u30b9\u30de\u30db\u3067<code>32px<\/code>\u306b\u7e2e\u307e\u308c\u3070\u3001\u30ab\u30fc\u30c9\u9593\u306e\u4f59\u767d\u3082\u81ea\u52d5\u3067<code>32px<\/code>\u306b\u306a\u308b\u3002\u500b\u5225\u306e\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306f\u4e0d\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">margin collapsing\u306e\u7f60<\/h2>\n\n\n\n<p>\u4f59\u767d\u8a2d\u8a08\u3067\u6700\u3082\u30cf\u30de\u308a\u3084\u3059\u3044\u306e\u304c\u3001margin\u306e\u76f8\u6bba\uff08margin collapsing\uff09\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>.section-title {\n  margin-bottom: 24px;\n}\n\n.section-text {\n  margin-top: 16px;\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u5834\u5408\u3001\u898b\u51fa\u3057\u3068\u30c6\u30ad\u30b9\u30c8\u306e\u9593\u306e\u4f59\u767d\u306f\u300c24px + 16px = 40px\u300d\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u5927\u304d\u3044\u65b9\u306e\u300c24px\u300d\u3060\u3051\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u304cmargin collapsing\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u610f\u56f3\u901a\u308a\u306e\u4f59\u767d\u306b\u306a\u3089\u305a\u3001\u300c40px\u7a7a\u304f\u306f\u305a\u306a\u306e\u306b24px\u3057\u304b\u7a7a\u3044\u3066\u306a\u3044\u300d\u300c\u5834\u6240\u306b\u3088\u3063\u3066\u4f59\u767d\u304c\u9055\u3046\u300d\u3068\u3044\u3046\u73fe\u8c61\u306e\u539f\u56e0\u306f\u3001\u5927\u62b5\u3053\u308c\u306a\u3093\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u5bfe\u7b56\u306f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u5bfe\u7b561\uff1a\u4e00\u65b9\u5411\u3060\u3051\u306bmargin\u3092\u4ed8\u3051\u308b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* margin-bottom\u3060\u3051\u3092\u4f7f\u3046\u30eb\u30fc\u30eb *\/\n.section-title {\n  margin-top: 0;\n  margin-bottom: var(--element-gap);\n}\n\n.section-text {\n  margin-top: 0;\n  margin-bottom: var(--content-gap);\n}<\/code><\/pre>\n\n\n\n<p><code>margin-top<\/code>\u3092\u4f7f\u308f\u305a\u3001<code>margin-bottom<\/code>\u3060\u3051\u3067\u9593\u9694\u3092\u7ba1\u7406\u3059\u308b\u30eb\u30fc\u30eb\u306b\u3059\u308c\u3070\u3001\u76f8\u6bba\u3092\u6c17\u306b\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u5bfe\u7b562\uff1a\u89aa\u8981\u7d20\u306bFlexbox\u3092\u4f7f\u3046<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>.section-body {\n  display: flex;\n  flex-direction: column;\n  gap: var(--element-gap);\n}\n\n.section-body &gt; * {\n  margin: 0;\n}<\/code><\/pre>\n\n\n\n<p>Flexbox\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306fmargin collapsing\u304c\u767a\u751f\u3057\u307e\u305b\u3093\u3002\u5b50\u8981\u7d20\u306emargin\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3066<code>gap<\/code>\u3067\u7ba1\u7406\u3059\u308b\u3068\u3001\u4e88\u6e2c\u53ef\u80fd\u306a\u4f59\u767d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u500b\u4eba\u7684\u306b\u306f\u5bfe\u7b562\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<code>gap<\/code>\u306a\u3089\u8981\u7d20\u306e\u8ffd\u52a0\u30fb\u524a\u9664\u30fb\u4e26\u3073\u66ff\u3048\u3092\u3057\u3066\u3082\u4f59\u767d\u304c\u5d29\u308c\u306a\u3044\u3093\u3067\u3059\u3088\u306d\u3002\u6848\u4ef6\u3067\u300c\u3053\u306e\u6bb5\u843d\u3092\u6d88\u3057\u3066\u307b\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u305f\u3068\u304d\u3001margin\u3060\u3068\u524d\u5f8c\u306e\u8981\u7d20\u306e\u4f59\u767d\u304c\u5909\u308f\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001gap\u306a\u3089\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3078\u306e\u8aac\u660e\u306e\u30b3\u30c4<\/h2>\n\n\n\n<p>\u4f59\u767d\u306e\u4fee\u6b63\u4f9d\u983c\u3092\u53d7\u3051\u305f\u3068\u304d\u3001\u300c\u308f\u304b\u308a\u307e\u3057\u305f\u3001\u8a70\u3081\u307e\u3059\u300d\u3067\u7d42\u308f\u3089\u305b\u308b\u3068\u3001\u5f8c\u304b\u3089\u5225\u306e\u7b87\u6240\u3067\u3082\u540c\u3058\u4fee\u6b63\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6848\u4ef6\u3067\u52b9\u679c\u7684\u3060\u3063\u305f\u306e\u306f\u3001\u4fee\u6b63\u4f9d\u983c\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067<strong>\u300c\u5168\u4f53\u7684\u306b\u8a70\u3081\u308b\u304b\u3001\u3053\u306e\u7b87\u6240\u3060\u3051\u8a70\u3081\u308b\u304b\u300d\u3092\u78ba\u8a8d\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5168\u4f53\u7684\u306b\u8a70\u3081\u308b\u5834\u5408\u306f\u30c8\u30fc\u30af\u30f3\u306e\u5024\u3092\u5909\u3048\u308b\u3060\u3051\u306a\u306e\u3067\u5de5\u6570\u306f\u5c11\u306a\u3044\u3002\u7279\u5b9a\u306e\u7b87\u6240\u3060\u3051\u4f8b\u5916\u306b\u3059\u308b\u5834\u5408\u306f\u500b\u5225\u5bfe\u5fdc\u304c\u5fc5\u8981\u306a\u306e\u3067\u5de5\u6570\u304c\u304b\u304b\u308b\u3002\u3053\u306e\u9055\u3044\u3092\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u306b\u4f1d\u3048\u3066\u304a\u304f\u3068\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3078\u306e\u898b\u7a4d\u3082\u308a\u8aac\u660e\u3082\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u4f59\u767d\u8a2d\u8a08\u3067\u5931\u6557\u3057\u306a\u3044CSS\u5b9f\u88c5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5834\u5f53\u305f\u308a\u7684\u306a<code>margin<\/code>\u8abf\u6574\u306f\u9023\u9396\u7684\u306a\u4fee\u6b63\u3092\u751f\u3080\u3002CSS\u5909\u6570\u3067\u30c8\u30fc\u30af\u30f3\u5316\u3057\u3066\u4e00\u5143\u7ba1\u7406\u3059\u308b<\/li>\n\n\n\n<li><code>gap<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3048\u3070\u3001\u8981\u7d20\u9593\u306e\u4f59\u767d\u3092\u76f4\u611f\u7684\u306b\u7ba1\u7406\u3067\u304d\u308b\u3002<code>:nth-child<\/code>\u306b\u3088\u308b\u8abf\u6574\u3082\u4e0d\u8981<\/li>\n\n\n\n<li>margin collapsing\u306f\u300c\u4e00\u65b9\u5411margin\u30eb\u30fc\u30eb\u300d\u304b\u300cFlexbox + gap\u300d\u3067\u56de\u907f\u3059\u308b<\/li>\n\n\n\n<li>\u300c\u5168\u4f53\u3092\u8a70\u3081\u308b\u304b\u3001\u3053\u306e\u7b87\u6240\u3060\u3051\u304b\u300d\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u4fee\u6b63\u306e\u624b\u623b\u308a\u304c\u6e1b\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u4f59\u767d\u306f\u5730\u5473\u3067\u3059\u304c\u3001\u30b5\u30a4\u30c8\u5168\u4f53\u306e\u5370\u8c61\u3092\u5927\u304d\u304f\u5de6\u53f3\u3057\u307e\u3059\u3002\u300c\u8a70\u3081\u3066\u307b\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u305f\u3068\u304d\u306b1\u7b87\u6240\u305a\u3064\u5bfe\u5fdc\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u8a2d\u8a08\u3068\u3057\u3066\u7ba1\u7406\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3092\u6700\u521d\u306b\u5165\u308c\u3066\u304a\u304f\u3068\u3001\u5f8c\u3005\u306e\u4fee\u6b63\u30b3\u30b9\u30c8\u304c\u5927\u5e45\u306b\u4e0b\u304c\u308a\u307e\u3059\u3002\u6b21\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u305c\u3072\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u682a\u5f0f\u4f1a\u793e\u30d5\u30a1\u30b9\u30c8\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u306f\u3001CSS\u8a2d\u8a08\u3084\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u304a\u624b\u4f1d\u3044\u3057\u3066\u3044\u307e\u3059\u3002\u300c\u4f59\u767d\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u8a2d\u8a08\u3092\u898b\u76f4\u3057\u305f\u3044\u300d\u300c\u65e2\u5b58\u30b5\u30a4\u30c8\u306eCSS\u8a2d\u8a08\u3092\u6539\u5584\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u65b9\u306f\u3001<a href=\"https:\/\/fastcoding.jp\/contact\/\">\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0<\/a>\u304b\u3089\u304a\u6c17\u8efd\u306b\u3054\u9023\u7d61\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u682a\u5f0f\u4f1a\u793e\u30d5\u30a1\u30b9\u30c8\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u50cd\u304f\u304a\u304b\u3093\u3067\u3059\u3002 \u5148\u65e5\u3001\u5b50\u3069\u3082\u306e\u904b\u52d5\u4f1a\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u308b\u304a\u624b\u4f1d\u3044\u3092\u3057\u305f\u3093\u3067\u3059\u304c\u3001\u300c\u6587\u5b57\u3068\u6587\u5b57\u306e\u9593\u304c\u30b9\u30ab\u30b9\u30ab\u3067\u8aad\u307f\u306b\u304f\u3044\u300d\u3068\u5148\u751f\u306b\u8a00\u308f\u308c\u3066\u4f59\u767d\u3092\u8a70\u3081\u305f\u3089\u3001\u4eca\u5ea6\u306f\u300c\u30ae\u30e5\u30c3\u3068\u3057\u3059\u304e\u3066\u7aae [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":9817,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[575],"tags":[33,32,23,753],"class_list":["post-9772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-html-css","tag-css","tag-html","tag-23","tag-753"],"acf":[],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/fastcoding.jp\/blog\/wp-content\/uploads\/2026\/06\/a4a7773ad910f5414f6f814b267f1606.jpg","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/posts\/9772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/comments?post=9772"}],"version-history":[{"count":2,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/posts\/9772\/revisions"}],"predecessor-version":[{"id":9821,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/posts\/9772\/revisions\/9821"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/media\/9817"}],"wp:attachment":[{"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/media?parent=9772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/categories?post=9772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fastcoding.jp\/blog\/wp-json\/wp\/v2\/tags?post=9772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}