{"id":6669,"date":"2024-02-01T18:20:52","date_gmt":"2024-02-01T09:20:52","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=6669"},"modified":"2024-07-12T19:19:48","modified_gmt":"2024-07-12T10:19:48","slug":"css-headline-design","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/css-headline-design\/","title":{"rendered":"\u30b3\u30d4\u30da\u3060\u3051\uff01CSS\u306e\u898b\u51fa\u3057\u30c7\u30b6\u30a4\u30f331\u9078\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011"},"content":{"rendered":"<p>\u672c\u8a18\u4e8b\u3067\u306fCSS\u306e\u898b\u51fa\u3057\uff08h1\u301ch6\u30bf\u30b0\uff09\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u309231\u500b\u7d39\u4ecb\u3057\u307e\u3059\u3002CSS\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30da\u3059\u308b\u3060\u3051\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u7d44\u307f\u5408\u308f\u305b\u3066\u81ea\u5206\u597d\u307f\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u306a\u306e\u3067\u305c\u3072\u3044\u308d\u3044\u308d\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n<div style=\"margin-top:4%;\">\n<p style=\"text-align:center; text-decoration:underline blue; font-weight:bold;\"><a href=\"https:\/\/techmania.jp\/lp\/2\">\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u790e\u304b\u3089\u30b5\u30a4\u30c8\u5236\u4f5c\u307e\u3067<br>\u2193\u5b9f\u8df5\u529b\u304c\u8eab\u306b\u3064\u304f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u2193<\/a><\/p>\n<\/div>\n<div style=\"text-align:center; margin-top:1%;\"><a href=\"https:\/\/techmania.jp\/lp\/2\"><img decoding=\"async\" style=\"width:300px;\" alt=\"IT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u6821 \u30c6\u30c3\u30af\u30de\u30cb\u30a2\u30b9\u30af\u30fc\u30eb\" src=\"https:\/\/techmania.jp\/blog\/wp-content\/uploads\/2023\/05\/sc4.jpg\"><\/a><\/div>\n<div style=\"margin-top:-0.3%;\">\n<p style=\"text-align:center; text-decoration:underline red; font-weight:bold;\"><a href=\"https:\/\/techmania.jp\/lp\/2\"><font color=\"red\">\u226b\u30e2\u30cb\u30bf\u30fc\u5272\u5f15\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u5b9f\u65bd\u4e2d\uff01\u226a<\/font><\/a><\/p>\n<\/div>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">HTML\u30b3\u30fc\u30c9<\/h2>\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3059\u3079\u3066\u3001\u4ee5\u4e0b\u306eHTML\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n<pre class=\"wp-block-code\"><code>&lt;h2&gt;\u898b\u51fa\u3057\u30c7\u30b6\u30a4\u30f3&lt;\/h2&gt;<\/code><\/pre>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">CSS\u30b3\u30fc\u30c9<\/h2>\n\n\n\n<h3 id=\"outline__2_1\" class=\"wp-block-heading\">\u6587\u5b57\u8272\u306e\u5909\u66f4<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch4.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n color:#2F5597;\/*\u6587\u5b57\u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u6587\u5b57\u8272\u306e\u6307\u5b9a\u306f\u300ccolor\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_2\" class=\"wp-block-heading\">\u4e0b\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch1.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n border-bottom:solid 3px black; \/*\u7dda\u306e\u7a2e\u985e\uff08\u5b9f\u7dda\uff09 \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u4e0b\u7dda\u306e\u6307\u5b9a\u306f\u300cborder-bottom\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u884c\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u7dda\u306e\u592a\u3055\u3084\u8272\u3082\u540c\u6642\u306b\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\uff08\u9806\u4e0d\u540c\uff09<\/p>\n\n\n<h3 id=\"outline__2_3\" class=\"wp-block-heading\">\u7834\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch2.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n border-bottom:dashed 3px #4472C4; \/*\u7dda\u306e\u7a2e\u985e\uff08\u70b9\u7dda\uff09 \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u7dda\u306e\u7a2e\u985e\u306f\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n\n<p><span class=\"markerYellow\"><strong>\u25c6\u7dda\u306e\u7a2e\u985e<\/strong><\/span><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>solid<\/td><td>1\u672c\u7dda<\/td><\/tr><tr><td>double<\/td><td>2\u672c\u7dda<\/td><\/tr><tr><td>dashed<\/td><td>\u7834\u7dda<\/td><\/tr><tr><td>dotted<\/td><td>\u70b9\u7dda<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_4\" class=\"wp-block-heading\">\u4e8c\u91cd\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch3.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n border-bottom:double 6px #FFBD31; \/*\u7dda\u306e\u7a2e\u985e\uff08\u4e8c\u91cd\u7dda\uff09 \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_5\" class=\"wp-block-heading\">\u4e0a\u4e0b\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch5.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em 0; \/*\u4e0a\u4e0b\u306e\u4f59\u767d \u5de6\u53f3\u306e\u4f59\u767d*\/\n border-top:solid 3px #4472C4; \/*\u7dda\u306e\u7a2e\u985e \u592a\u3055 \u8272*\/\n border-bottom:solid 3px #4472C4; \/*\u7dda\u306e\u7a2e\u985e \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u300cborder-top\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u4e0a\u7dda\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<p>\u307e\u305f\u3001\u300cpadding\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067h2\u8981\u7d20\u306e\u5185\u5074\u306e\u4f59\u767d\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002padding\u306e\u6307\u5b9a\u65b9\u6cd5\u306f\u4ee5\u4e0b\u3067\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<p><span class=\"markerYellow\"><strong>\u25c6\u4f59\u767d\uff08padding\uff09\u306e\u6307\u5b9a\u65b9\u6cd5<\/strong><\/span><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>padding: \u25cbpx;<\/td><td>\u300c\u4e0a\u4e0b\u5de6\u53f3\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>padding: \u25cbpx \u25cbpx;<\/td><td>\u300c\u4e0a\u4e0b\u300d\u300c\u5de6\u53f3\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>padding: \u25cbpx \u25cbpx \u25cbpx;<\/td><td>\u300c\u4e0a\u300d\u300c\u5de6\u53f3\u300d\u300c\u4e0b\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>padding: \u25cbpx \u25cbpx \u25cbpx \u25cbpx;<\/td><td>\u300c\u4e0a\u300d\u300c\u53f3\u300d\u300c\u4e0b\u300d\u300c\u5de6\u300d\u3092\u6307\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p><span class=\"markerYellow\"><strong>\u25c6\u30b5\u30a4\u30ba\u306e\u5358\u4f4d<\/strong><\/span><\/p>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>px<\/td><td>\u30b9\u30af\u30ea\u30fc\u30f3\u306e1\u30d4\u30af\u30bb\u30eb\u30921\u3068\u3057\u305f\u5358\u4f4d<br>\u8868\u793a\u30b5\u30a4\u30ba\u306f\u4f7f\u7528\u3059\u308b\u30e2\u30cb\u30bf\u306e\u89e3\u50cf\u5ea6\u306b\u4f9d\u5b58<\/td><\/tr><tr><td>em<\/td><td>\u89aa\u8981\u7d20\u306e\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u306b\u5bfe\u3057\u3066\u4f55\u500d\u304b\u3092\u8868\u73fe\u3059\u308b\u5358\u4f4d<\/td><\/tr><tr><td>rem<\/td><td>HTML\u306e\u30eb\u30fc\u30c8\u8981\u7d20\u306e\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u306b\u5bfe\u3057\u3066\u4f55\u500d\u304b\u793a\u3057\u305f\u5358\u4f4d<\/td><\/tr><tr><td>%<\/td><td>\u89aa\u8981\u7d20\u306e\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u306b\u5bfe\u3059\u308b\u500d\u7387\u3067\u8868\u73fe\u3059\u308b\u5358\u4f4d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_6\" class=\"wp-block-heading\">\u80cc\u666f\u8272<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch6.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u300cbackground\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u80cc\u666f\u8272\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_7\" class=\"wp-block-heading\">\u80cc\u666f\u8272\uff08\u67c4\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch31.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:1rem; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n color:#fff; \/*\u6587\u5b57\u8272*\/\n background:#888; \/*\u80cc\u666f\u8272*\/\n background-image:radial-gradient(#999 35%,transparent 35%), radial-gradient(#999 35%, transparent 35%); \/*\u80cc\u666f\u753b\u50cf*\/\n background-size:50px 50px; \/*\u80cc\u666f\u753b\u50cf\u306e\u30b5\u30a4\u30ba*\/\n background-position:0 0,25px 25px; \/*\u80cc\u666f\u753b\u50cf\u306e\u4f4d\u7f6e*\/\n}<\/code><\/pre>\n\n\n<p>\u5fdc\u7528\u3057\u3066\u80cc\u666f\u3092\u88c5\u98fe\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n<h3 id=\"outline__2_8\" class=\"wp-block-heading\">\u4e0b\u7dda+\u80cc\u666f\u8272<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch8.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n border-bottom:solid 3px #2F5597; \/*\u7dda\u306e\u7a2e\u985e \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_9\" class=\"wp-block-heading\">\u67a0\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch9.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n border:solid 3px #2F5597; \/*\u7dda\u306e\u7a2e\u985e \u592a\u3055 \u8272*\/\n}<\/code><\/pre>\n\n\n<p>\u300cborder\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u67a0\u7dda\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_10\" class=\"wp-block-heading\">\u4e38\u307f\u67a0\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch7.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n border:solid 3px #2F5597; \/*\u7dda\u306e\u7a2e\u985e \u592a\u3055 \u8272*\/\n border-radius: 0.5em;\/*\u4e38\u89d2*\/\n}<\/code><\/pre>\n\n\n<p>\u300cborder-radius\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u67a0\u7dda\u306e\u89d2\u3092\u4e38\u304f\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_11\" class=\"wp-block-heading\">\u5de6\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch10.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.25em 0.5em; \/*\u4e0a\u4e0b \u5de6\u53f3\u306e\u4f59\u767d*\/\n border-left:solid 6px #4472C4; \/*\u5de6\u7dda*\/\n background:transparent; \/*\u80cc\u666f\u8272\u306b\u900f\u660e\u3092\u6307\u5b9a*\/\n}<\/code><\/pre>\n\n\n<p>\u300cborder-left\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u5de6\u7dda\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_12\" class=\"wp-block-heading\">\u5de6\u7dda+\u80cc\u666f\u8272<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch11.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n border-left:solid 6px #4472C4; \/*\u5de6\u7dda*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_13\" class=\"wp-block-heading\">\u80cc\u666f\u8272\uff08\u7acb\u4f53\u611f\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch13.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n box-shadow:0 0 5px rgba(0, 0, 0, 0.5);\n}<\/code><\/pre>\n\n\n<p>\u300cbox-shadow\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u8981\u7d20\u306e\u5468\u56f2\u306b\u30b7\u30e3\u30c9\u30a6\u52b9\u679c\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_14\" class=\"wp-block-heading\">\u5de6\u7dda+\u80cc\u666f\u8272\uff08\u7acb\u4f53\u611f\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch12.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#F3F3F3; \/*\u80cc\u666f\u8272*\/\n border-left:solid 6px #4472C4;\/*\u5de6\u7dda*\/\n border-bottom:solid 4px #D6D6D6;\/*\u4e0b\u7dda*\/\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_15\" class=\"wp-block-heading\">\u5439\u304d\u51fa\u3057<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch14.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative; \/*\u76f8\u5bfe\u5024\u3067\u914d\u7f6e*\/\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n}\n\n\/*\u64ec\u4f3c\u30af\u30e9\u30b9*\/\nh2:after{\n position:absolute; \/*\u7d76\u5bfe\u5024\u3067\u914d\u7f6e*\/\n content:''; \/*\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u633f\u5165*\/\n top:100%;\n left:30px; \/*\u5de6\u5074\u304b\u3089\u306e\u8ddd\u96e2*\/\n border:15px solid transparent;\n border-top:20px solid #DEEBF7;\n width:0;\n height:0;\n}<\/code><\/pre>\n\n\n<p>\u4e09\u89d2\u90e8\u5206\u306f\u7591\u4f3c\u30af\u30e9\u30b9\u3067\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<blockquote class=\"wp-embedded-content\" data-secret=\"nsztEoPtp1\"><a href=\"https:\/\/techmania.jp\/blog\/css-pseudo-elements\/\">\u3010CSS\u3011\u64ec\u4f3c\u8981\u7d20\u3068\u306f\uff1f::before\u3084::after\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;\u3010CSS\u3011\u64ec\u4f3c\u8981\u7d20\u3068\u306f\uff1f::before\u3084::after\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac&#8221; &#8212; TechMania\" src=\"https:\/\/techmania.jp\/blog\/css-pseudo-elements\/embed\/#?secret=AnPv1dXw5a#?secret=nsztEoPtp1\" data-secret=\"nsztEoPtp1\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n\n\n\n<h3 id=\"outline__2_16\" class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30c1<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch15.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n background:#DEEBF7; \/*\u80cc\u666f\u8272*\/\n box-shadow: 0px 0px 0px 5px #DEEBF7;\n border:dashed 3px white;\n padding:0.5em; \/*\u4e0a\u4e0b\u5de6\u53f3\u306e\u4f59\u767d*\/\n}<\/code><\/pre>\n\n\n<p>\u67a0\u7dda\u306e\u5916\u5074\u90e8\u5206\u306f\u300cbox-shadow\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_17\" class=\"wp-block-heading\">\u30bf\u30b0<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch30.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n display:inline-block;\n height:40px;\n margin-left:40px;\n padding:1rem 2rem;\n color:white;\n background:#2F5597;\n}\n\nh2:before{\n position:absolute;\n top:0;\n left:-40px;\n content:'';\n border-width:36px 40px 36px 0;\n border-style:solid;\n border-color:transparent #2F5597 transparent transparent;\n}\n\nh2:after{\n position:absolute;\n top: calc(50% - 7px);\n left:-10px;\n width:15px;\n height:15px;\n content:'';\n border-radius:50%;\n background:white;\n}<\/code><\/pre>\n\n\n<p>\u5439\u304d\u51fa\u3057\u306e\u4e09\u89d2\u90e8\u5206\u3068\u540c\u69d8\u306b\u7591\u4f3c\u30af\u30e9\u30b9\u3067\u4e09\u89d2\u306e\u90e8\u5206\u3068\u4e38\u306e\u90e8\u5206\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_18\" class=\"wp-block-heading\">\u30da\u30fc\u30d1\u30fc<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch16.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n background:#DEEBF7;\n padding:0.5em 0.9em;\n box-shadow:1px 1px 1px rgba(0,0,0,0.2);\n}\n\nh2::after{\n position:absolute;\n content:'';\n left:-2px;\n top:-2px;\n border-width:0 0 20px 20px;\n border-style:solid;\n border-color:white white #B5D2ED;\n box-shadow:1px 1px 1px rgba(0,0,0,0.3);\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_19\" class=\"wp-block-heading\">\u30de\u30fc\u30ab\u30fc<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch17.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n background:linear-gradient(transparent 60%,#9DC3E6 60%);\n}<\/code><\/pre>\n\n\n<p>\u5024\u306b\u300clinear-gradient\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u304b\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_20\" class=\"wp-block-heading\">\u4e0b\u7dda\uff082\u8272\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch18.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n border-bottom:solid 5px gray;\n}\n\nh2::after{\n position:absolute;\n content:\"\";\n display:block;\n border-bottom:solid 5px #9DC3E6;\n bottom:-5px;\n width:20%;\n}<\/code><\/pre>\n\n\n<p>position\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u76f4\u63a5\u305d\u306e\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u6307\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u89aa\u8981\u7d20\u306b\u300cposition: relative;\u300d\u3001\u5b50\u8981\u7d20\u306b\u300cposition:absolute;\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u5b50\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u89aa\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u57fa\u6e96\u306b\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_21\" class=\"wp-block-heading\">\u4e0b\u7dda\uff08\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch23.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n padding:0.2em 0;\n}\n\nh2:after{\n content:\"\";\n display:block;\n height:5px;\n background:linear-gradient(to right,#6DA6D9,#1F4F7B);\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_22\" class=\"wp-block-heading\">\u4e21\u30b5\u30a4\u30c9\u7dda<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch28.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n display:inline-block;\n padding:0 150px;\n text-align:center;\n}\n\nh2:before,h2:after{\n position:absolute;\n top:calc(50% - 5px);\n width:100px;\n height:10px;\n content:'';\n border-top:solid 3px #2F5597;\n}\nh2:before{\n left:0;\n}\nh2:after{\n right:0;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_23\" class=\"wp-block-heading\">\u53f0\u5f62<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch19.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n padding:5px 40px 5px 40px;\n background:#DEEBF7;\n ine-height:2px;\n border-bottom:solid 3px #9DC3E6;\n}\n\nh2::before{\n position:absolute;\n content:'';\n left:-2px;\n top:-2px;\n width:0;\n height:0;\n border:none;\n border-left:solid 40px white;\n border-bottom:solid 80px transparent;\n}\nh2::after{\n position:absolute;\n content:'';\n right:-2px;\n top:-7px;\n width:0;\n height:0;\n border:none;\n border-left:solid 40px transparent;\n border-bottom:solid 80px white;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_24\" class=\"wp-block-heading\">\u30ab\u30ae\u30ab\u30c3\u30b3<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch20.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n line-height:2;\n padding:0.2em 1.3em;\n display:inline-block;\n}\n\nh2:before,h2:after{\n position:absolute;\n content:'';\n width:20px;\n height:30px;\n display:inline-block;\n}\n\nh2:before{\n border-left:solid 3px #9DC3E6;\n border-top:solid 3px #9DC3E6;\n top:0;\n left: 0;\n}\n\nh2:after{\n border-right:solid 3px #9DC3E6;\n border-bottom:solid 3px #9DC3E6;\n bottom:0;\n right: 0;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_25\" class=\"wp-block-heading\">\u30ab\u30c3\u30b3<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch21.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n line-height:2;\n padding:0.1em 2em;\n display:inline-block;\n top:0;\n}\n\nh2:before,h2:after{ \n position:absolute;\n content:'';\n top:0;\n width:8px;\n height:100%;\n display:inline-block;\n}\n\nh2:before{\n border-left:solid 3px #6DA6D9;\n border-top:solid 3px #6DA6D9;\n border-bottom:solid 3px #6DA6D9;\n left: 0;\n}\n\nh2:after{\n border-top:solid 3px #6DA6D9;\n border-right:solid 3px #6DA6D9;\n border-bottom:solid 3px #6DA6D9;\n right:0;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_26\" class=\"wp-block-heading\">\u4e00\u6587\u5b57\u76ee\u3060\u3051\u88c5\u98fe\u3059\u308b<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch22.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2:first-letter{\n font-size:1.2em;\n color:#2F5597;\n}<\/code><\/pre>\n\n\n<p>\u300cfirst-letter\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u4e00\u6587\u5b57\u76ee\u306e\u88c5\u98fe\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_27\" class=\"wp-block-heading\">\u80cc\u666f\u8272\uff08\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch24.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n padding:0.2em 0.5em;\n background:linear-gradient(to right,#9DC3E6,transparent);\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_28\" class=\"wp-block-heading\">\u53cd\u5c04<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch25.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n color:#9DC3E6;\n line-height:2; \/*\u884c\u9ad8*\/\n -webkit-box-reflect:below -30px -webkit-linear-gradient(top,rgba(0,0,0,0),rgba(0,0,0,0) 10%,rgba(0,0,0,0.7));\n}<\/code><\/pre>\n\n\n<p>\u300cwebkit-box-reflect\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u8981\u7d20\u306e\u53cd\u5c04\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<h3 id=\"outline__2_29\" class=\"wp-block-heading\">\u5148\u982d\u5186<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch26.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n position:relative;\n padding:0px 15px;\n}\nh2::before{\n content:\"\";\n position:absolute;\n background:#DEEBF7;\n width:50px;\n height:50px;\n border-radius:50%;\n top:50%;\n left:5px;\n transform:translateY(-50%);\n z-index:-1;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_30\" class=\"wp-block-heading\">\u80cc\u666f\u8272\uff08\u91cd\u306a\u308a\uff09<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch27.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n padding:1rem 2rem;\n color:white;\n background:#4472C4;\n box-shadow:5px 5px 0 #2F5597;\n}<\/code><\/pre>\n\n\n\n<h3 id=\"outline__2_31\" class=\"wp-block-heading\">\u30b5\u30d6\u30b3\u30d4\u30fc<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/ch29.png\" class=\"post-img\">\n\n\n<p><strong>\u3010CSS\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>h2{\n margin:30px 20px 10px;\n position:relative;\n padding:1rem;\n text-align:center;\n border:3px solid black;\n border-radius:0 10px 10px 10px;\n}\n\nh2::before{\n font-size:20px;\n position:absolute;\n top:-25px;\n left:-3px;\n height:25px;\n padding:0 1em;\n content:'POINT';\n color:white;\n border-radius:10px 10px 0 0;\n background:black;\n}<\/code><\/pre>\n\n\n\n<h2 id=\"outline__3\" 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class=\"post-img\">\n\n\n<p>IT\u30b9\u30ad\u30eb\u9700\u8981\u306e\u9ad8\u307e\u308a\u3068\u3068\u3082\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3082\u5897\u3048\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3069\u306e\u30b9\u30af\u30fc\u30eb\u306b\u901a\u3046\u3079\u304d\u304b\u8ff7\u3063\u3066\u3057\u307e\u3046\u4eba\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u3093\u306a\u65b9\u306b\u306f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\uff01\u3053\u308c\u307e\u3067\u591a\u304f\u306eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u80b2\u6210\u30fb\u8f29\u51fa\u3057\u3066\u304d\u305f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3092\u958b\u8b1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"bgBox\">\n<p><strong>\uff1c\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306e\u7279\u5fb4\uff1e<\/strong><br 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