{"version":"1.0","width":"100%","blog_url":"https://ienshu.hatenadiary.jp/","url":"https://ienshu.hatenadiary.jp/entry/2025/11/23/000000_1","author_url":"https://blog.hatena.ne.jp/ihigoro/","published":"2025-11-13 00:00:00","blog_title":"The \u5fa9\u7fd2","author_name":"ihigoro","provider_name":"Hatena Blog","categories":["\u2605CSS"],"provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fienshu.hatenadiary.jp%2Fentry%2F2025%2F11%2F23%2F000000_1\" title=\"\u64ec\u4f3c\u8981\u7d20\uff1abefore / after - The \u5fa9\u7fd2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u64ec\u4f3c\u8981\u7d20\uff1abefore / after","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/w/web-css-design/20250513/20250513001010.png","type":"rich","description":"\u64ec\u4f3c\u8981\u7d20 HTML\u306b\u8a18\u8ff0\u305b\u305aCSS\u3067\u64ec\u4f3c\u7684\u306b\u4f5c\u6210\u3055\u308c\u308b\u8981\u7d20\u3067\u3042\u308b\u305f\u3081\u3001\u300c\u64ec\u4f3c\u8981\u7d20\u300d\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059 \u64ec\u4f3c\u8981\u7d20\u306b\u306f\u591a\u304f\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u4e2d\u3067\u3082\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u64ec\u4f3c\u8981\u7d20\u306fbefore\u3068after\u3067\u3059 before / after\u3068\u306f \u8981\u7d20\u306e\u524d\u5f8c\u306b\u64ec\u4f3c\u8981\u7d20\u3092\u4f5c\u6210\u3059\u308b\u6307\u5b9a\u65b9\u6cd5\u3067\u3059 before / after\u306e\u4f7f\u3044\u65b9 \u8981\u7d20\u3084class\u540d\u3001id\u540d\u306a\u3069\u306e\u3042\u3068\u306b::before\u3001::after\u3068\u8a18\u8ff0\u3057\u307e\u3059 before\u3068after\u306e\u524d\u306b\u306f\u30b3\u30ed\u30f3(:)\u306e\u8a18\u8ff0\u304c2\u3064\u5fc5\u8981\u3067\u3059 \u30b9\u30bf\u30a4\u30eb\u306e\u4e2d\u306b\u306f\u300ccontent\u300d\u306e\u6307\u5b9a\u304c\u5fc5\u8981\u3067\u3059 content: \"\"; \u306e\u4e2d\u8eab\u306f\u7a7a\u767d\u3067\u3082\u5927\u4e08\u592b\u3067\u3059\u304c\u3001\u8a18\u53f7\u3084\u30c6\u30ad\u30b9\u30c8\u3092\u8868\u793a\u3057\u305f\u3044\u2026"}