{"id":81825,"date":"2018-12-26T13:43:16","date_gmt":"2018-12-26T04:43:16","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=81825"},"modified":"2025-09-04T10:40:05","modified_gmt":"2025-09-04T01:40:05","slug":"html%e3%81%a7%e3%82%88%e3%81%8f%e4%bd%bf%e3%82%8f%e3%82%8c%e3%82%8b%e3%82%ab%e3%83%a9%e3%83%bc%e3%82%b3%e3%83%bc%e3%83%89%e3%82%92%e8%a7%a3%e8%aa%ac%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/81825","title":{"rendered":"HTML\u521d\u5fc3\u8005\u5fc5\u898b\uff01\u3088\u304f\u4f7f\u308f\u308c\u308b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u30fb\u30ab\u30e9\u30fc\u30cd\u30fc\u30e0\u3092\u7d39\u4ecb"},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306fHTML\u3084CSS\u3067\u8272\u3092\u6c7a\u3081\u308b\u3068\u304d\u306b\u4f7f\u308f\u308c\u308b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\uff01HTML\u3084CSS\u3067\u306f\u8272\u3092\u6c7a\u3081\u308b\u305f\u3081\u306b\u3001\u8272\u3092\u6307\u5b9a\u3059\u308b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3068\u547c\u3070\u308c\u308b\u30b3\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u8272\u3092\u6c7a\u3081\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u4ed6\u306b\u3082\u8272\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<\/p>\n<div class=\"box01\">\n<ul>\n<li><b>\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3068\u306f<\/b><\/li>\n<li><b>\u8272\u3092\u6307\u5b9a\u3059\u308b2\u3064\u306e\u65b9\u6cd5\uff08\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3001\u30ab\u30e9\u30fc\u30cd\u30fc\u30e0\uff09<\/b><\/li>\n<\/ul>\n<\/div>\n<p>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002HTML\u3084CSS\u3067\u4f7f\u308f\u308c\u308b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3092\u3001\u4eca\u307e\u3067\u306a\u3093\u3068\u306a\u304f\u4f7f\u3063\u3066\u304d\u305f\u65b9\u306f\u305c\u3072\u3054\u89a7\u304f\u3060\u3055\u3044\uff01<\/p>\n<h2>\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3068\u306f<\/h2>\n<p>\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306f\u3001HTML\u3067\u8272\u3092\u6c7a\u3081\u308b\u3068\u304d\u306b\u4f7f\u308f\u308c\u308b<b>\u8272\u3092\u8868\u3057\u305f\u30b3\u30fc\u30c9<\/b>\u3067\u3059\u3002\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"decode:true \">#000000 &lt;!-- \u30d6\u30e9\u30c3\u30af --&gt;\n#ff0000 &lt;!-- \u30ec\u30c3\u30c9 --&gt;\n#00ff00 &lt;!-- \u30e9\u30a4\u30e0\uff08\u30b0\u30ea\u30fc\u30f3\uff09 --&gt;\n#0000ff &lt;!-- \u30d6\u30eb\u30fc --&gt;\n#ffffff &lt;!-- \u30db\u30ef\u30a4\u30c8 --&gt;<\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u3001<b>\u30b7\u30e3\u30fc\u30d7\u304b\u30896\u6841\u300116\u9032\u6570\u3067\u8868\u3055\u308c\u305f\u6570\u5b57<\/b>\u304c\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u306a\u308a\u307e\u3059\u300216\u9032\u6570\u306f\u300c0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F\u300d\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e16\u9032\u6570\u3067\u8868\u3055\u308c\u308b\u6841\u304c6\u6841\u3042\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u6841\u3067\u8272\u306e\u5f79\u5272\u304c\u5909\u308f\u308a\u307e\u3059\u3002RGB\u3068\u3044\u3046\u8a00\u8449\u3092\u805e\u3044\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/p>\n<p>RGB\u306fRed\u3001Green\u3001Blue\u306e\u982d\u6587\u5b57\u3067\u3001\u305d\u308c\u305e\u308c\u8272\u306e\u4e09\u539f\u8272\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8272\u306e\u4e09\u539f\u8272\u304c\u3001\u305d\u308c\u305e\u308c2\u6841\u305a\u3064\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3092\u8e0f\u307e\u3048\u3066\u5148\u7a0b\u306e\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>0\u301cf\u306b\u306a\u308b\u306b\u3064\u308c\u3066\u3001\u8272\u304c\u660e\u308b\u304f\u306a\u3063\u3066\u3044\u304f\u3053\u3068\u304c\u30d6\u30e9\u30c3\u30af\u3068\u30db\u30ef\u30a4\u30c8\u304b\u3089\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n<p>\u307e\u305f\u3001\u30ec\u30c3\u30c9\u3001\u30e9\u30a4\u30e0\uff08\u30b0\u30ea\u30fc\u30f3\uff09\u3001\u30d6\u30eb\u30fc\u306e\u8272\u3092\u898b\u3066\u307f\u308b\u3068\u3001\u305d\u308c\u305e\u308c\u5272\u308a\u5f53\u3066\u3089\u308c\u305f2\u6841\u304cf\u306b\u3001\u3064\u307e\u308a\u4e00\u756a\u660e\u308b\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u4ed5\u7d44\u307f\u306f\u5206\u304b\u3063\u3066\u9802\u3051\u305f\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<h2>\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<p>\u305d\u308c\u3067\u306f\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3068\u8a00\u3063\u3066\u3082\u3001\u5148\u7a0b\u306e\u8272\u306e\u6307\u5b9a\u3092\u3001<b>\u8272\u3092\u5909\u3048\u308b\u305f\u3081\u306b\u9069\u5207\u306a\u90e8\u5206\u306b\u66f8\u304f\u3060\u3051<\/b>\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305a\u306fHTML\u4e0a\u3067\u3001\u76f4\u63a5\u6587\u5b57\u306e\u8272\u3092\u5909\u3048\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"decode:true \">&lt;html&gt;\n    &lt;div class=\"text\"&gt;\n        &lt;font color=\"blue\"&gt;Hello.&lt;\/font&gt;\n        &lt;font color=\"#0000FF\"&gt;Goodbye.&lt;\/font&gt;\n    &lt;\/div&gt;\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/68aa7ea5038a5138c0781d59f9217cca-300x198.png\" alt=\"\" width=\"300\" height=\"198\" class=\"alignnone size-medium wp-image-83011\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/68aa7ea5038a5138c0781d59f9217cca-300x198.png 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/68aa7ea5038a5138c0781d59f9217cca-150x99.png 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/68aa7ea5038a5138c0781d59f9217cca.png 570w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>\u3053\u3053\u3067\u306ffont\u30bf\u30b0\u3067\u8272\u3092\u5909\u3048\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u56f2\u3063\u3066\u3001color\u5c5e\u6027\u3067\u8272\u3092\u5909\u3048\u3066\u3044\u307e\u3059\u3002\u8272\u304c\u82f1\u5358\u8a9e\u3068\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306e2\u3064\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u5f8c\u307b\u3069\u89e3\u8aac\u3057\u307e\u3059\uff01<\/p>\n<p>\u3067\u306f\u6b21\u306b\u3001span\u30bf\u30b0\u3084div\u30bf\u30b0\u3092\u4f7f\u3063\u305f\u8272\u306e\u5909\u66f4\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001HTML\u3068CSS\u3067\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u3053\u3061\u3089\u306e\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>HTML<\/p>\n<pre class=\"decode:true \">&lt;html&gt;\n    &lt;div style=\"color:greenyellow\"&gt;Hello.&lt;\/div&gt;\n    &lt;span style=\"color:#00FF00\"&gt;Goodbye.&lt;\/span&gt;\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/48a8065561f890574faf8fa8ca1a6911-300x168.png\" alt=\"\" width=\"300\" height=\"168\" class=\"alignnone size-medium wp-image-83012\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/48a8065561f890574faf8fa8ca1a6911-300x168.png 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/48a8065561f890574faf8fa8ca1a6911-150x84.png 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/48a8065561f890574faf8fa8ca1a6911.png 492w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>HTML+CSS<\/p>\n<pre class=\"decode:true \">&lt;style&gt;\n    .text, div {\n        color: red;\n    }\n    \n    .text, span {\n        color: #FF0000;\n    }\n\n&lt;\/style&gt;\n\n&lt;html&gt;\n    &lt;div class=\"text\"&gt;Hello.&lt;\/div&gt;\n    &lt;span class=\"text\"&gt;Goodbye.&lt;\/span&gt;\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/77bdf6f5f3b50ba27d8807ea0d0b73a0-300x173.png\" alt=\"\" width=\"300\" height=\"173\" class=\"alignnone size-medium wp-image-83013\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/77bdf6f5f3b50ba27d8807ea0d0b73a0-300x173.png 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/77bdf6f5f3b50ba27d8807ea0d0b73a0-150x87.png 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/12\/77bdf6f5f3b50ba27d8807ea0d0b73a0.png 492w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>\u3053\u3053\u3067\u306fdiv\u30bf\u30b0\u3068span\u30bf\u30b0\u306b\u3064\u3044\u3066\u3001HTML\u306e\u307f\u306e\u5834\u5408\u3068HTML\u3068CSS\u3092\u4f7f\u3063\u305f\u5834\u5408\u306b\u5206\u3051\u3066\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u306f\u5148\u7a0b\u306e\u8272\u306e\u6307\u5b9a\u65b9\u6cd5\u3068\u540c\u3058\u3067\u3059\u306d\u3002\u305f\u3060\u3001font\u30bf\u30b0\u3068\u9055\u3063\u3066div\u30bf\u30b0\u3084span\u30bf\u30b0\u3067\u306fstyle\u5c5e\u6027\u3092\u4f7f\u3063\u3066\u8272\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u6c17\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305f\u3001CSS\u3092\u4f7f\u3063\u3066\u69d8\u3005\u306a\u8272\u3092\u5909\u3048\u308b\u305f\u3081\u306e\u8a73\u3057\u3044\u89e3\u8aac\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u305c\u3072\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/57425\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/09\/css_eye-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">CSS\u3067\u8981\u7d20\u3084\u6587\u5b57\u306b\u8272\u3092\u3064\u3051\u308b\u65b9\u6cd5\u5168\u90e8\u307e\u3068\u3081<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e749\u67084\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n<h2>\u7701\u7565\u3084\u540d\u524d\u3067\u8272\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5<\/h2>\n<p>\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306e\u57fa\u672c\u306b\u3064\u3044\u3066\u5206\u304b\u3063\u305f\u3068\u3053\u308d\u3067\u3001\u8272\u3092\u6307\u5b9a\u3059\u308b2\u3064\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9<\/h3>\n<p>\u5148\u7a0b\u306e\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306f2\u6841\u305a\u3064RGB\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u300c#16\u9032\u65706\u6841\u300d\u306e\u5f62\u3067\u3057\u305f\u3002\u3053\u306e\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u306f\u7701\u7565\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"decode:true \">#000 &lt;!-- \u30d6\u30e9\u30c3\u30af --&gt;\n#f00 &lt;!-- \u30ec\u30c3\u30c9 --&gt;\n#fff &lt;!-- \u30db\u30ef\u30a4\u30c8 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content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c HTML\u521d\u5fc3\u8005\u5fc5\u898b\uff01\u3088\u304f\u4f7f\u308f\u308c\u308b\u30ab\u30e9\u30fc\u30b3\u30fc\u30c9\u30fb\u30ab\u30e9\u30fc\u30cd\u30fc\u30e0\u3092\u7d39\u4ecb \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/81825\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta 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