{"id":189,"date":"2021-08-29T20:32:41","date_gmt":"2021-08-29T11:32:41","guid":{"rendered":"https:\/\/web-entrance.jp\/?p=189"},"modified":"2021-09-05T16:16:21","modified_gmt":"2021-09-05T07:16:21","slug":"css%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ae%e5%a7%8b%e3%82%81%e6%96%b9","status":"publish","type":"post","link":"https:\/\/web-entrance.jp\/?p=189","title":{"rendered":"\u3010CSS\u3011CSS\u306e\u4ed5\u7d44\u307f\u3068\u521d\u671f\u8a2d\u5b9a"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/c0965998\/public_html\/web-entrance.jp\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>113<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/c0965998\/public_html\/web-entrance.jp\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>118<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/c0965998\/public_html\/web-entrance.jp\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>124<\/b><br \/>\n    <div id=\"toc_container\" class=\"toc_container toc-container sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"Table of Contents\">\n      <p class=\"toc_title\">\u76ee\u6b21 <span class=\"toc_toggle js-toc-toggle\" data-open-toggle=\"\u8868\u793a\" data-close-toggle=\"\u975e\u8868\u793a\">\u975e\u8868\u793a<\/span><\/p>\n      <ul class=\"toc_list js-toc-list\">  <li class=\"first\">    <a href=\"#i-0\">CSS\u3068\u306f<\/a>  <\/li>  <li>    <a href=\"#i-1\">CSS\u306f\u96e3\u3057\u3044\uff1f<\/a>  <\/li>  <li>    <a href=\"#i-2\">CSS\u3092\u89e6\u3063\u3066\u307f\u3088\u3046<\/a>  <\/li>  <li>    <a href=\"#i-3\">class\u3092\u77e5\u308d\u3046<\/a>  <\/li>  <li class=\"last\">    <a href=\"#i-4\">CSS\u306f\u96e3\u3057\u3044\u3051\u3069\u5b9f\u611f\u304c\u3064\u304b\u307f\u3084\u3059\u3044\u30b3\u30fc\u30c9\u3067\u3059<\/a>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-0\"><div class=\"sgb-heading__inner sgb-heading--type3\" style=\"background-color:#fff9e5;border-color:#ffb36b;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#333\">CSS\u3068\u306f<\/span><\/div><\/h2>\n\n\n\n<p>CSS\u306f\u300c\u30ab\u30b9\u30b1\u2015\u30c7\u30a3\u30f3\u30b0\u30b9\u30bf\u30a4\u30eb\u30b7\u30fc\u30c8\uff08Cascading Style Sheets\uff09\u300d\u306e\u7565\u3067\u3001HTML\u306a\u3069\u306e\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u8a00\u8a9e\u306e\u898b\u305f\u76ee\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u6307\u5b9a\u3059\u308b\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u6587\u5b57\u306e\u8272\u3092\u5909\u66f4\u3057\u305f\u3044<\/li><li>\u80cc\u666f\u8272\u3092\u5909\u66f4\u3057\u305f\u3044<\/li><li>\u753b\u50cf\u3068\u6587\u7ae0\u3092\u30ab\u30fc\u30c9\u578b\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3057\u305f\u3044<\/li><li>\u30dc\u30bf\u30f3\u306b\u30de\u30a6\u30b9\u3092\u4e57\u305b\u305f\u3068\u304d\u306b\u8272\u3092\u8584\u304f\u3057\u305f\u3044<\/li><\/ul>\n\n\n\n<p>\u306a\u3069\u3092\u5b9f\u73fe\u3057\u305f\u3044\u3068\u304d\u306f\u3001CSS\u3092\u4f7f\u7528\u3057\u3066\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-1\"><div class=\"sgb-heading__inner sgb-heading--type3\" style=\"background-color:#fff9e5;border-color:#ffb36b;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#333\">CSS\u306f\u96e3\u3057\u3044\uff1f<\/span><\/div><\/h2>\n\n\n\n<p>CSS\u306f\u3001\u7d50\u8ad6\u304b\u3089\u8a00\u3048\u3070\u96e3\u3057\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5148\u307b\u3069\u6319\u3052\u305f\u3088\u3046\u306a\u4f8b\u3067\u3042\u308c\u3070\u5927\u3057\u305f\u3053\u3068\u306a\u3044\u3067\u3059\u3057\u3001\u3061\u3087\u3063\u3068\u3057\u305f\u88c5\u98fe\u3067\u3042\u308c\u3070\u3059\u3050\u306b\u3067\u3082\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u5c11\u3057\u51dd\u3063\u305f\u3088\u3046\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3057\u305f\u308a\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u3064\u3051\u305f\u308a\u3001\u3069\u306e\u3088\u3046\u306a\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u540c\u3058\u3088\u3046\u306b\u8868\u793a\u3055\u305b\u305f\u308a\u3001\u3068\u3044\u3046\u3053\u3068\u3092\u884c\u304a\u3046\u3068\u3057\u305f\u3089\u3001\u9014\u7aef\u306b\u96e3\u6613\u5ea6\u306f\u8df3\u306d\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u521d\u5b66\u8005\u306f\u3001\u4ed5\u7d44\u307f\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3057\u3088\u3046\u3068\u3059\u308b\u65b9\u304c\u591a\u3044\u306e\u3067\u3059\u304c\u3001\u79c1\u306e\u7d4c\u9a13\u4e0a\u3001\u521d\u5b66\u8005\u306e\u3046\u3061\u306f\u5b8c\u5168\u306a\u7406\u89e3\u3092\u76ee\u6307\u3055\u306a\u3044\u65b9\u304c\u826f\u3044\u3067\u3059\u3002\u4ed6\u306e\u3053\u3068\u306b\u624b\u304c\u56de\u3089\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3042\u308b\u7a0b\u5ea6\u7d4c\u9a13\u3092\u7a4d\u3093\u3067\u3044\u308b\u4eba\u304c\u3001\u3088\u308a\u5c02\u9580\u7684\u306a\u89e3\u8aac\u30b5\u30a4\u30c8\u3084\u672c\u3092\u8aad\u3093\u3067\u3001\u3088\u3046\u3084\u304f\u7406\u89e3\u3067\u304d\u308b\u30ec\u30d9\u30eb\u3067\u3059\u306e\u3067\u3001\u307e\u305a\u306f\u300c\u4f7f\u3048\u308b\u300d\u3092\u76ee\u6a19\u306b\u8eab\u306b\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-2\"><div class=\"sgb-heading__inner sgb-heading--type3\" style=\"background-color:#fff9e5;border-color:#ffb36b;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#333\">CSS\u3092\u89e6\u3063\u3066\u307f\u3088\u3046<\/span><\/div><\/h2>\n\n\n\n<p>\u4e0b\u8a18\u30ea\u30f3\u30af\u304b\u3089\u3001zip\u30d5\u30a1\u30a4\u30eb\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u306b\u5c55\u958b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-file\"><a href=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css_practice_example1.zip\">css_practice_example1<\/a><a href=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css_practice_example1.zip\" class=\"wp-block-file__button\" download>\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a><\/div>\n\n\n\n<p>index.html\u3092Google Chrome\u304b\u3089\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u51fa\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"749\" height=\"239\" src=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css1.png\" alt=\"\" class=\"wp-image-191\" srcset=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css1.png 749w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css1-300x96.png 300w\" sizes=\"auto, (max-width: 749px) 100vw, 749px\"><\/figure>\n\n\n\n<p>\u307e\u305a\u3001HTML\u30d5\u30a1\u30a4\u30eb\u3068CSS\u30d5\u30a1\u30a4\u30eb\u306e\u30ea\u30f3\u30af\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002index.html\u3092\u30a8\u30c7\u30a3\u30bf\u3067\u958b\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u30d5\u30a1\u30a4\u30eb\u304c\u958b\u3051\u305f\u3089HTML\u306etitle\u30bf\u30b0\u306e\u4e0b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>HTML<\/span><pre><code>&lt;link rel=\"stylesheet\" href=\"style.css\"&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>link\u30bf\u30b0\u3092&lt;head&gt;\u5185\u306b\u8a18\u8ff0\u3059\u308b\u3068\u3001\u5916\u90e8\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u305d\u306eHTML\u30d5\u30a1\u30a4\u30eb\u304c\u8aad\u307f\u8fbc\u3080\uff08\u53c2\u7167\u3001\u3068\u8a00\u3044\u307e\u3059\uff09\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>rel=\u201dstylesheet\u201d\u3068\u3044\u3046\u306e\u306fCSS\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3088\u3001\u3068\u3044\u3046\u5ba3\u8a00\u306e\u3088\u3046\u306a\u3082\u306e\u306a\u306e\u3067\u3001\u305d\u306e\u307e\u307e\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>href=\u201dstyle.css\u201d\u306f\u3001img\u30bf\u30b0\u306e\u9805\u3067\u304a\u8a71\u3057\u3057\u305f\u300c\u76f8\u5bfe\u30d1\u30b9\u300d\u3067\u3059\u3002\u300cindex.html\u3068\u540c\u3058\u968e\u5c64\u306b\u3042\u308bstyle.css\u3092\u30ea\u30f3\u30af\u3055\u305b\u307e\u3057\u3087\u3046\u300d\u3068\u3044\u3046\u6307\u793a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u4e00\u884c\u304c\u3042\u308c\u3070CSS\u30d5\u30a1\u30a4\u30eb\u3068\u9023\u643a\u304c\u53ef\u80fd\u3067\u3059\u3002\u9006\u306b\u8a00\u3048\u3070\u3001\u3053\u308c\u3092\u66f8\u3044\u3066\u3044\u306a\u304b\u3063\u305f\u308a\u3001\u76f8\u5bfe\u30d1\u30b9\u3092\u9593\u9055\u3048\u305f\u308a\u3059\u308b\u3068\u4e00\u5207CSS\u304c\u52b9\u304d\u307e\u305b\u3093\u3002\u521d\u5b66\u8005\u306b\u306f\u3042\u308a\u304c\u3061\u306a\u30df\u30b9\u3067\u3059\u306e\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u3063\u305f\u3089\u6700\u521d\u306b\u30ea\u30f3\u30af\u3055\u305b\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u7d9a\u3044\u3066\u3001HTML\u306e&lt;body&gt;\u306e\u90e8\u5206\u3092\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>HTML<\/span><pre><code>    &lt;h1&gt;HTML\u30fbCSS\u3092\u52c9\u5f37\u3057\u307e\u3057\u3087\u3046\uff01&lt;\/h1&gt;\n\n    &lt;p&gt;CSS\u3067\u6587\u5b57\u3092\u8d64\u304f\u3057\u307e\u3059\u3002&lt;\/p&gt;\n\n    &lt;p class=\"bg_color\"&gt;CSS\u3067\u80cc\u666f\u3092\u8d64\u304f\u3057\u307e\u3059\u3002\u6587\u5b57\u306f\u767d\u304f\u3057\u307e\u3059\u3002&lt;\/p&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u4e00\u756a\u4e0a\u306e\u6587\u5b57\u304c\u5927\u304d\u3044\u306e\u306f\u898b\u51fa\u3057\u306e&lt;h1&gt;\u30bf\u30b0\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u4e0b\u4e8c\u3064\u306fHTML\u4e0a\u306f\u7279\u306b\u6307\u793a\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u3001index.html\u306e\u6b21\u306b\u3042\u308b\u3001style.css\u3092\u30a8\u30c7\u30a3\u30bf\u3067\u958b\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>@charset \"UTF-8\";\n\np{\n    color: red;\n}\n\n.bg_color{\n    background-color: red;\n    color: white;\n}<\/code><\/pre><\/div>\n\n\n\n<p>color\u3068\u304bred\u3068\u304b\u3001\u306a\u3093\u3068\u306a\u304f\u3053\u3053\u304c\u95a2\u308f\u3063\u3066\u3044\u305d\u3046\u3001\u3068\u3044\u3046\u30a4\u30e1\u30fc\u30b8\u306f\u6cb8\u304d\u307e\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<p>\u3053\u306eCSS\u30d5\u30a1\u30a4\u30eb\u3067\u8272\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u306a\u3069\u306e\u6307\u5b9a\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e00\u3064\u4e00\u3064\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>\n\n@charset \"UTF-8\";\n\n<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u308c\u306f\u300c\u6587\u5b57\u30b3\u30fc\u30c9\u300d\u306e\u6307\u5b9a\u3067\u3059\u3002WEB\u3067\u6271\u3046\u6587\u5b57\u30b3\u30fc\u30c9\u306f\u57fa\u672c\u7684\u306bUTF-\uff18\u3068\u3044\u3046\u65b9\u5f0f\u3092\u7528\u3044\u307e\u3059\u306e\u3067\u3001\u539f\u5247\u7684\u306b\u3053\u308c\u306f\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>\n\np{\n    color: red;\n}\n\n<\/code><\/pre><\/div>\n\n\n\n<p>\u6bb5\u843d\u3092\u610f\u5473\u3059\u308bHTML\u306ep\u30bf\u30b0\u306b\u5bfe\u3057\u3066\u3001color\u3001\u3064\u307e\u308a\u8272\u3092\u8d64\u306b\u3057\u3066\u304f\u308c\u3001\u3068\u3044\u3046\u6307\u793a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3061\u306a\u307f\u306b\u3001\u6587\u5b57\u8272\u306fcolor\u3067\u3001\u3053\u306e\u5f8c\u51fa\u3066\u304f\u308b\u80cc\u666f\u8272\u306fbackground-color\u3068\u306a\u308a\u307e\u3059\u3002\u9593\u9055\u3048\u3084\u3059\u3044\u306e\u3067\u6c17\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3092\u3082\u3068\u306b\u8aac\u660e\u3059\u308b\u3068\u3001p\u306f\u30bb\u30ec\u30af\u30bf\u3068\u3044\u3046\u3082\u306e\u3067\u3001HTML\u306e\u8981\u7d20\uff08\uff1d\u30bf\u30b0\uff09\u3092\u6307\u5b9a\u3082\u3067\u304d\u307e\u3059\u3057\u3001\u5f8c\u8ff0\u3059\u308bclass\u3084id\u3082\u30bb\u30ec\u30af\u30bf\u3068\u3057\u3066\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3069\u3053\u306b\u5bfe\u3057\u3066\u3001\u3068\u3044\u3046\u6307\u5b9a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001color\u306e\u90e8\u5206\u306f\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u8a00\u3063\u3066\u3001\u6307\u5b9a\u3057\u305f\u7b87\u6240\u306b\u884c\u3046\u6307\u793a\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6700\u5f8c\u306b\u3001red\u306e\u90e8\u5206\u306f\u5024\uff08\u3042\u305f\u3044\uff09\u3068\u8a00\u3063\u3066\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5177\u4f53\u7684\u306b\u3069\u3046\u3059\u308b\u306e\u304b\u3001\u3068\u3044\u3046\u6307\u793a\u304c\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u306a\u306e\u3067\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3092\u7ffb\u8a33\u3059\u308b\u3068\u3001\u300cp\u3068\u3044\u3046\u8981\u7d20\uff08\u30bb\u30ec\u30af\u30bf\uff09\u306b\u6587\u5b57\u8272\u3092\u5909\u3048\u308b\u6307\u793a\uff08\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3092\u51fa\u3057\u307e\u3059\u3002\u8d64\u8272\uff08\u5024\uff09\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d\u3068\u3044\u3046\u610f\u5473\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u203b\u7406\u89e3\u3092\u512a\u5148\u3059\u308b\u305f\u3081\u3001\u3042\u3048\u3066\u8868\u73fe\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-1024x576.png\" alt=\"\" class=\"wp-image-193\" srcset=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-1024x576.png 1024w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-300x169.png 300w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-768x432.png 768w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-1536x864.png 1536w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector-940x529.png 940w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/selector.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/figure>\n\n\n\n<p>\u30bb\u30ec\u30af\u30bf\u306e\u5f8c\u308d\u306f\u6ce2\u304b\u3063\u3053\uff5b\uff5d\u3067\u56f2\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u5024\u306f\uff1a\uff1b\u3067\u56f2\u307e\u308c\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u672c\u6765\u3067\u3042\u308c\u3070<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>p{ color: red;}<\/code><\/pre><\/div>\n\n\n\n<p>\u3068\u306a\u308b\u306e\u3067\u3059\u304c\u3001\u3053\u308c\u3060\u3068\u8907\u6570\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5165\u308c\u308b\u3068\u304d\u306b\u898b\u3065\u3089\u304f\u306a\u308b\u306e\u3067\u3001<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>p{\n    color: red;\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u3068\u3001\u884c\u3092\u5206\u3051\u3066\u8868\u793a\u3059\u308b\u306e\u304c\u901a\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001\u3053\u306e\u30b3\u30fc\u30c9\u306e\u5024\u3067\u3042\u308b\u300cred\u300d\u3092\u300cblue\u300d\u306b\u5909\u66f4\u3057\u3066\u3001\u518d\u5ea6Google Chrome\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3059\u3067\u306b\u8d64\u8272\u306e\u6642\u306b Google Chrome \u3092\u958b\u3044\u3066\u3044\u308b\u65b9\u306f\u5de6\u4e0a\u306e\u518d\u8aad\u307f\u8fbc\u307f\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u304b\u3001F5\u30ad\u30fc\u3092\u62bc\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-sango-with-big-shadow\"><img loading=\"lazy\" decoding=\"async\" width=\"655\" height=\"241\" src=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css2.png\" alt=\"\" class=\"wp-image-195\" srcset=\"https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css2.png 655w, https:\/\/web-entrance.jp\/wp-content\/uploads\/2021\/08\/css2-300x110.png 300w\" sizes=\"auto, (max-width: 655px) 100vw, 655px\"><\/figure>\n\n\n\n<p>2\u884c\u76ee\u306e\u6587\u5b57\u304c\u9752\u304f\u306a\u3063\u3066\u3044\u308c\u3070\u6210\u529f\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-sgb-headings sgb-heading\" id=\"i-3\"><div class=\"sgb-heading__inner sgb-heading--type3\" style=\"background-color:#fff9e5;border-color:#ffb36b;font-size:1.2em\"><span class=\"sgb-heading__text\" style=\"color:#333\">class\u3092\u77e5\u308d\u3046<\/span><\/div><\/h2>\n\n\n\n<p>\u3055\u304d\u307b\u3069\u3001p\u30bf\u30b0\u306b\u5bfe\u3057\u3066color:blue;\u3068\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30012\u884c\u76ee\u306ep\u30bf\u30b0\u306f\u9752\u8272\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u30013\u884c\u76ee\u306ep\u30bf\u30b0\u306f\u5909\u308f\u308a\u307e\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u305d\u306e\u307e\u307e\u306e\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u306a\u305c\u305d\u3046\u306a\u308b\u304b\u3068\u3044\u3046\u306e\u3092\u3001HTML\u306e3\u884c\u76ee\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>&lt;p class=\"bg_color\"&gt;CSS\u3067\u80cc\u666f\u3092\u8d64\u304f\u3057\u307e\u3059\u3002\u6587\u5b57\u306f\u767d\u304f\u3057\u307e\u3059\u3002&lt;\/p&gt;<\/code><\/pre><\/div>\n\n\n\n<p>p\u30bf\u30b0\u306f\u3064\u3044\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u76f4\u5f8c\u306bclass=\u201dbg_color\u201d\u3068\u3044\u3046\u3082\u306e\u304c\u3064\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u304cclass\uff08\u30af\u30e9\u30b9\uff09\u5c5e\u6027\u3068\u3044\u3046\u3082\u306e\u3067\u3001\u300c\u3053\u3053\u3060\u3051\u5225\u306eCSS\u306b\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u3068\u304d\u306b\u3064\u3051\u308b\u5c5e\u6027\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306eclass\u5c5e\u6027\u306f\u3001\u534a\u89d2\u82f1\u6570\u3068\u4e00\u90e8\u306e\u8a18\u53f7\u3067\u3042\u308c\u3070\u81ea\u7531\u306b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u901a\u5e38\u306f\u3001\u300c\u4f55\u3092\u3057\u305f\u3044\u304b\u304c\u898b\u3066\u308f\u304b\u308b\u300d\u3088\u3046\u306a\u540d\u524d\u306b\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u80cc\u666f\u8272\u3092\u5909\u66f4\u3057\u305f\u304b\u3063\u305f\u306e\u3067\u3001bg_color\uff08bg\u306fbackground\u306e\u7565\uff09\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6975\u7aef\u306a\u8a71\u3001\u300chaikeinoiro\u300d\u3068\u304b\u3067\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\u30ed\u30fc\u30de\u5b57\u306f\u3081\u3063\u305f\u306b\u3057\u307e\u305b\u3093\u304c\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\u3001class\u5c5e\u6027\u306e\u8a2d\u5b9a\u304c\u51fa\u6765\u305f\u3089\u3001CSS\u30d5\u30a1\u30a4\u30eb\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-sgb-codebox pre_tag\"><span><i class=\"fa fa-code\"><\/i>CSS<\/span><pre><code>.bg_color{\n    background-color: red;\n    color: white;\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u307e\u305a\u6ce8\u76ee\u3057\u3066\u307b\u3057\u3044\u306e\u304c\u3001\u6700\u521d\u306b\u3042\u308b\u30bb\u30ec\u30af\u30bf\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5148\u982d\u306b\u30c9\u30c3\u30c8\uff08 . \uff09\u304c\u3064\u3044\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u300cclass\u5c5e\u6027\u3067\u8a2d\u5b9a\u3057\u305f\u30bb\u30ec\u30af\u30bf\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u306a\u306e\u3067\u3001HTML\u30d5\u30a1\u30a4\u30eb\u3067\u306eclass=\u201dbg_color\u201d\u306f\u3001CSS\u30d5\u30a1\u30a4\u30eb\u3067\u306e.bg_color\u3068\u540c\u4e00\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\u3001bg_color\u306e\u8a2d\u5b9a\u3068\u3057\u3066\u3001background-color:red;\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u80cc\u666f\u8272\u304c\u8d64\u8272\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u5143\u306e\u8a2d\u5b9a\u3067p\u30bf\u30b0\u3092color:red;\u306b\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u306e\u307e\u307e\u3060\u3068\u8d64\u80cc\u666f\u306b\u8d64\u6587\u5b57\u3067\u898b\u3048\u306a\u304f\u306a\u308a\u307e\u3059\u306e\u3067\u3001color:white;\u3082\u8a2d\u5b9a\u3057\u3066\u3001\u6587\u5b57\u8272\u3092\u767d\u304f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001HTML\u3067\u8a18\u8ff0\u3057\u305f\u8981\u7d20\u306f\u3001CSS\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u69d8\u3005\u306a\u8868\u73fe\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 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