{"id":2410,"date":"2021-04-05T16:59:42","date_gmt":"2021-04-05T07:59:42","guid":{"rendered":"https:\/\/design.coeure.co.jp\/blog\/?p=2410"},"modified":"2026-04-13T11:28:11","modified_gmt":"2026-04-13T02:28:11","slug":"programming-04","status":"publish","type":"post","link":"https:\/\/design.coeure.co.jp\/blog\/webmarketing\/homepage\/programming-04","title":{"rendered":"CSS\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\uff0d\u521d\u5fc3\u8005\u3082\u3067\u304d\u308b\uff01\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u57fa\u790e\u8b1b\u5ea7\u3010\u7b2c4\u56de\u3011"},"content":{"rendered":"\n<p>\u30b7\u30ea\u30fc\u30ba\u8a18\u4e8b <strong>\u521d\u5fc3\u8005\u3082\u3067\u304d\u308b\uff01\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u57fa\u790e\u8b1b\u5ea7\u3010\u7b2c4\u56de\u3011<\/strong>\u306f\u3001<strong>CSS\u306e\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u306b\u3064\u3044\u3066\u3067\u3059\u3002\u7b2c3\u56de\u3067\u306f\u3001HTML\u306e\u8981\u7d20\u3092\u30bb\u30ec\u30af\u30bf\u306b\u6307\u5b9a\u3057\u3001\u201d\u306a\u306b\u201d\u3092\u201d\u3069\u3046\u3059\u308b\u201d\u304b\u306b\u3064\u3044\u3066\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u6587\u5b57\u306e\u5927\u304d\u3055\u3084\u30d5\u30a9\u30f3\u30c8\u306e\u7a2e\u985e\u3001\u80cc\u666f\u8272\u3084\u5e45\u30fb\u9ad8\u3055\u306e\u8a18\u8ff0\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u6587\u5b57\u306e\u5927\u304d\u3055<\/h2>\n\n\n\n<p><span class=\"st-mymarker-s\"><strong>\u30d7\u30ed\u30d1\u30c6\u30a3\uff1afont-size<\/strong><\/span><\/p>\n\n\n\n<p>HTML\uff1a<br><img decoding=\"async\" class=\"alignnone wp-image-2393\" src=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/html_h1_001.jpg\" alt=\"\" width=\"403\" height=\"40\" srcset=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/html_h1_001.jpg 564w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/html_h1_001-300x30.jpg 300w\" sizes=\"(max-width: 403px) 100vw, 403px\" \/><\/p>\n\n\n\n<p>CSS\uff1a<br><img decoding=\"async\" class=\"alignnone size-full wp-image-2403\" src=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-size.jpg\" alt=\"\" width=\"798\" height=\"307\" srcset=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-size.jpg 798w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-size-300x115.jpg 300w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-size-768x295.jpg 768w\" sizes=\"(max-width: 798px) 100vw, 798px\" \/><\/p>\n\n\n\n<p>\u4e0a\u306e\u753b\u50cf\u306e\u3088\u3046\u306b\u3001<strong>font-size: \u3007\u3007px;<\/strong> \u3068\u3044\u3046\u5f62\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001HTML\u306e&lt;h1&gt;\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u57fa\u790e\u8b1b\u5ea7&lt;\/h1&gt;\u306e\u30d5\u30a9\u30f3\u30c8\u306e\u5927\u304d\u3055\u304c20px\u306b\u6307\u5b9a\u3055\u308c\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u6570\u5b57\u3092\u5909\u3048\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u5927\u304d\u3055\u304c\u5909\u308f\u308a\u307e\u3059\u3002 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srcset=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-family.jpg 801w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-family-300x95.jpg 300w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/font-family-768x244.jpg 768w\" sizes=\"(max-width: 801px) 100vw, 801px\" \/><\/p>\n\n\n\n<p><strong>font-family: \uff08\u30d5\u30a9\u30f3\u30c8\u540d\uff09;<\/strong> \u3068\u3044\u3046\u5f62\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u300csans-serif\u300d\u306f\u30b4\u30b7\u30c3\u30af\u4f53\u306e\u4e00\u7a2e\u3067\u3059\u3002\u3082\u3057\u3001\u30d5\u30a9\u30f3\u30c8\u540d\u304c\u3000-\uff08\u30cf\u30a4\u30d5\u30f3\uff09\u3067\u3064\u306a\u304c\u3063\u3066\u304a\u3089\u305a\u3001\u9593\u306b\u30b9\u30da\u30fc\u30b9\u304c\u3042\u308b\u3082\u306e\u3067\u3042\u308c\u3070\u3001\u30d5\u30a9\u30f3\u30c8\u540d\u3092 &#8221; &#8221; 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height=\"237\" srcset=\"https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/background-color.jpg 799w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/background-color-300x89.jpg 300w, https:\/\/design.coeure.co.jp\/blog\/wp-content\/uploads\/2021\/02\/background-color-768x228.jpg 768w\" sizes=\"(max-width: 799px) 100vw, 799px\" \/><\/p>\n\n\n\n<p>background-color; \uff08\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\uff09; \u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002\u7b2c3\u56de\u3067\u89e3\u8aac\u3057\u305fcolor\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u8a18\u8ff0\u65b9\u6cd5\u306f\u540c\u3058\u3067\u3059\u3002\u4e0a\u306e\u753b\u50cf\u306e\u5834\u5408\u3001HTML\u306eh1\u898b\u51fa\u3057\u306e\u80cc\u666f\u8272\u306f\u3001#dddddd\uff08\u7070\u8272\uff09\u306b\u8a2d\u5b9a\u3055\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u80cc\u666f\u8272\u306e\u5e45\u3068\u9ad8\u3055<\/h2>\n\n\n\n<p><span 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