{"id":7460,"date":"2024-08-02T19:13:36","date_gmt":"2024-08-02T10:13:36","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=7460"},"modified":"2024-08-07T12:08:11","modified_gmt":"2024-08-07T03:08:11","slug":"css-border-radius","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/css-border-radius\/","title":{"rendered":"\u3010CSS\u3011border-radius\u3067\u5186\u3084\u4e38\u89d2\u306b\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac"},"content":{"rendered":"<p>border-radius\u306f\u8981\u7d20\u306b\u4e38\u307f\u3092\u3064\u3051\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3001Web\u5236\u4f5c\u306b\u3088\u304f\u7528\u3044\u3089\u308c\u307e\u3059\u3002border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u3084\u308f\u3089\u304b\u3044\u96f0\u56f2\u6c17\u3092\u8868\u73fe\u3067\u304d\u305f\u308a\u3068\u3001\u8868\u73fe\u306e\u5e45\u304c\u5e83\u304c\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306fborder-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u4f7f\u3044\u65b9\u3092\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u4ed8\u304d\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">border-radius\u3068\u306f<\/h2>\n\n\n<p>CSS\u306eborder-radius\u3068\u306fHTML\u8981\u7d20\u306e\u56db\u9685\u306e\u89d2\u3092\u4e38\u3081\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30dc\u30c3\u30af\u30b9\u3084\u753b\u50cf\u3001\u30dc\u30bf\u30f3\u3092\u4e38\u89d2\u3084\u5186\u5f62\u306b\u3067\u304d\u307e\u3059\u3002\u56f3\u5f62\u306e\u8868\u73fe\u3084\u30dc\u30bf\u30f3\u30ea\u30f3\u30af\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u3082\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">border-radius\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<h3 id=\"outline__2_1\" class=\"wp-block-heading\">border-radius\u306e\u57fa\u672c\u5f62<\/h3>\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>border-radius:\u534a\u5f84;<\/code><\/pre>\n\n\n<p>\u6570\u5024\u3092\u534a\u5f84\u3068\u3059\u308b\u5186\u306b\u3088\u3063\u3066\u3001\u89d2\u306e\u4e38\u3055\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u6b21\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u8981\u7d20\u3092\u5186\u5f62\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010HTML\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>&lt;div&gt;&lt;\/div&gt;\u3000&lt;div class=a&gt;&lt;\/div&gt;<\/code><\/pre>\n\n\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>div{\n display: inline-block;\n background-color:#aaf;\n width:200px;\n height:200px;\n}\n.a{\n border-radius:50%;\n}<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br1.png\" class=\"post-img\">\n\n\n<p>\u4e0a\u306e\u56f3\u5f62\u304c\u5143\u306e\u8981\u7d20\u3067\u3001\u4e0b\u306e\u56f3\u5f62\u304c\u4e0a\u8a18CSS\u3092\u9069\u7528\u3057\u305f\u8981\u7d20\u3067\u3059\u3002\u753b\u50cf\u7de8\u96c6\u30bd\u30d5\u30c8\u3092\u4f7f\u7528\u3057\u306a\u304f\u3066\u3082CSS\u30b3\u30fc\u30c9\u3067\u5b9f\u73fe\u3067\u304d\u308b\u306e\u306f\u4fbf\u5229\u3067\u3059\u306d\u3002<\/p>\n\n\n<div style=\"margin-top:4%;\"><a href=\"https:\/\/techmania.jp\/\"><p style=\"text-align:center; font-weight:bold; color:black; text-decoration:underline black;\">\u3042\u306a\u305f\u306e\u3054\u5e0c\u671b\u306b\u6cbf\u3063\u305f\u6848\u4ef6\u304c<span style=\"color: red;\">\u5fc5\u305a<\/span>\u898b\u3064\u304b\u308a\u307e\u3059<br>\u3010\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u5411\u3051\u3011<span style=\"color: red;\">\u9ad8\u53ce\u5165<\/span><span style=\"color: black;\">\u30fb<\/span><span style=\"color: blue;\">\u597d\u5f85\u9047<\/span><span style=\"color: black;\">\u306e\u6848\u4ef6\u3092\u3054\u7d39\u4ecb<\/span>\n<\/p><\/a>\n<\/div>\n\n<div style=\"text-align:center; margin-top:1%;\"><a href=\"https:\/\/techmania.jp\/\"><img decoding=\"async\" style=\"filter:drop-shadow(0px 0px 2px rgba(0,0,0,0.3));width:300px;\" alt=\"TECH MANIA \u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\" src=\"https:\/\/techmania.jp\/blog\/wp-content\/uploads\/2024\/02\/stop.png\"><\/a>\n<\/div>\n\n<div style=\"margin-top:0%;\"><a href=\"https:\/\/techmania.jp\/\">\n<p style=\"text-align:center; font-weight:bold; color:black; text-decoration:underline black;\">\u226b\u307e\u305a\u306f\u7c21\u5358<span style=\"color: blue;\">60<\/span>\u79d2\u3067<span style=\"color: red;\">\u7121\u6599\u304a\u554f\u3044\u5408\u308f\u305b<\/span>\u304b\u3089\u226a\n<\/p><\/a>\n<\/div>\n\n\n\n<h3 id=\"outline__2_2\" class=\"wp-block-heading\">\u6307\u5b9a\u53ef\u80fd\u306a\u5358\u4f4d<\/h3>\n\n\n<p>\u534a\u5f84\u306e\u9577\u3055\u306f\u300c\u6570\u5024+\u5358\u4f4d\u300d\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u5358\u4f4d\u304c\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>px<\/td><td>\u30b9\u30af\u30ea\u30fc\u30f3\u306e1\u30c9\u30c3\u30c8\u30921px\u3068\u3059\u308b<br>\u5229\u7528\u74b0\u5883\u306b\u4f9d\u5b58\u3057\u306a\u3044\u7d76\u5bfe\u5358\u4f4d<\/td><\/tr><tr><td>em<\/td><td>\u6587\u5b57\u306e\u9ad8\u3055\u3092\u57fa\u6e96\u3068\u3059\u308b\u76f8\u5bfe\u5358\u4f4d<\/td><\/tr><tr><td>\uff05<\/td><td>\u8981\u7d20\u306e\u5e45\u3068\u9ad8\u3055\u306b\u5bfe\u3059\u308b\u534a\u5f84\u306e\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u3092\u6307\u5b9a\u3059\u308b\u76f8\u5bfe\u5358\u4f4d<br>\u6a2a\u534a\u5f84\uff1a\u8981\u7d20\u306ewidth\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u5bfe\u3059\u308b\uff05\u5024<br>\u7e26\u534a\u5f84\uff1a\u8981\u7d20\u306eheight\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u5bfe\u3059\u308b\uff05\u5024<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"outline__2_3\" class=\"wp-block-heading\">\u4e38\u307f\u306e\u6307\u5b9a\u306f\u300c\u30b9\u30e9\u30c3\u30b7\u30e5\u300d\u533a\u5207\u308a<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>border-radius:\u5024;<\/code><\/pre>\n\n\n<p>\u57fa\u672c\u5f62\u3067\u8aac\u660e\u3057\u307e\u3057\u305f\u304c\u3001\u5024\u30921\u3064\u3060\u3051\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u6c34\u5e73\u65b9\u5411\u30fb\u5782\u76f4\u65b9\u5411\u3068\u3082\u306b\u540c\u3058\u5024\u306b\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br2.png\" class=\"post-img\">\n\n\n\n<pre class=\"wp-block-code\"><code>border-radius:\u50241\/\u50242;<\/code><\/pre>\n\n\n<p>2\u3064\u306e\u5024\u3092\u300c\/\uff08\u30b9\u30e9\u30c3\u30b7\u30e5\uff09\u300d\u3067\u533a\u5207\u3063\u3066\u6307\u5b9a\u3059\u308b\u3068\u50241\u304c\u6c34\u5e73\u65b9\u5411\uff08\u6a2a\u534a\u5f84\uff09\u306e\u5024\u3001\u50242\u304c\u5782\u76f4\u65b9\u5411\uff08\u7e26\u534a\u5f84\uff09\u306e\u5024\u3068\u3057\u3066\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br3.png\" class=\"post-img\">\n\n\n\n<h3 id=\"outline__2_4\" class=\"wp-block-heading\">\u9069\u7528\u7b87\u6240\u306e\u6307\u5b9a\u306f\u300c\u534a\u89d2\u30b9\u30da\u30fc\u30b9\u300d\u533a\u5207\u308a<\/h3>\n\n\n\n<h4 id=\"outline__2_4_1\" class=\"wp-block-heading\">border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u4e00\u62ec\u6307\u5b9a\u30d7\u30ed\u30d1\u30c6\u30a3<\/h4>\n\n\n<p>border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u4e0b\u8a18\u306e\u500b\u5225\u6307\u5b9a\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4e00\u62ec\u3067\u6307\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>border-top-left-radius<\/td><td>\u8981\u7d20\u306e\u5de6\u4e0a\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-top-right-radius<\/td><td>\u8981\u7d20\u306e\u53f3\u4e0a\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-bottom-right-radius<\/td><td>\u8981\u7d20\u306e\u53f3\u4e0b\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-bottom-left-radius<\/td><td>\u8981\u7d20\u306e\u5de6\u4e0b\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u8907\u6570\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u307e\u3068\u3081\u3066\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u300c\u30b7\u30e7\u30fc\u30c8\u30cf\u30f3\u30c9\u300d\u3068\u3044\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30b7\u30e7\u30fc\u30c8\u30cf\u30f3\u30c9\u3067\u8a18\u8ff0\u3067\u304d\u308bborder\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3088\u3046\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u300c\u30b7\u30e7\u30fc\u30c8\u30cf\u30f3\u30c9\u30d7\u30ed\u30d1\u30c6\u30a3\u300d\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br7.png\" class=\"post-img\">\n\n\n<p>border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3053\u308c\u30894\u3064\u306e\u500b\u5225\u6307\u5b9a\u306eborder-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u3046\u3061\u30011\u3064\u307e\u305f\u306f\u8907\u6570\u306e\u5024\u3092\u534a\u89d2\u30b9\u30da\u30fc\u30b9\u3067\u533a\u5207\u3063\u3066\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u4e00\u62ec\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u6307\u5b9a\u500b\u6570\u306b\u3088\u3063\u3066\u6307\u5b9a\u7b87\u6240\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u306f\u5024\u306e\u6307\u5b9a\u9806\u5e8f\u306f\u5de6\u4e0a\u304b\u3089\u6642\u8a08\u56de\u308a\u306b\u5de6\u4e0a\u2192\u53f3\u4e0a\u2192\u53f3\u4e0b\u2192\u5de6\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>border-radius \u25cb<\/td><td>\u300c\u5de6\u4e0a\u30fb\u53f3\u4e0a\u30fb\u53f3\u4e0b\u30fb\u5de6\u4e0b\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>border-radius \u25cb \u25cb<\/td><td>\u300c\u5de6\u4e0a\u30fb\u53f3\u4e0b\u300d\u300c\u53f3\u4e0a\u30fb\u5de6\u4e0b\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>border-radius \u25cb \u25cb \u25cb<\/td><td>\u300c\u5de6\u4e0a\u300d\u300c\u53f3\u4e0a\u30fb\u5de6\u4e0b\u300d\u300c\u53f3\u4e0b\u300d\u3092\u6307\u5b9a<\/td><\/tr><tr><td>border-radius \u25cb \u25cb \u25cb \u25cb<\/td><td>\u300c\u5de6\u4e0a\u300d\u300c\u53f3\u4e0a\u300d\u300c\u53f3\u4e0b\u300d\u300c\u5de6\u4e0b\u300d\u3092\u6307\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p>\u4e0a\u8a18\u306e2\u7a2e\u985e\u306e\u6307\u5b9a\u3092\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>border-radius:30px 40px 50px 60px\/70px 80px 90px;<\/code><\/pre>\n\n\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u6307\u5b9a\u3059\u308b\u3068\u3001\u300c\u5de6\u4e0a\u306f\u6c34\u5e73\u65b9\u5411\u306b30px\u3001\u5782\u76f4\u65b9\u5411\u306b70px\u300d\u3001\u300c\u53f3\u4e0a\u306e\u6c34\u5e73\u65b9\u5411\u306b40px\u3001\u5782\u76f4\u65b9\u5411\u306b80px\u300d\u3001\u300c\u53f3\u4e0b\u306e\u6c34\u5e73\u65b9\u5411\u306b50px\u3001\u5782\u76f4\u65b9\u5411\u306b90xp\u300d\u3001\u300c\u5de6\u4e0b\u306e\u6c34\u5e73\u65b9\u5411\u306b60px\u3001\u5782\u76f4\u65b9\u5411\u306b80px\u300d<\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br4.png\" class=\"post-img\">\n\n\n\n<h4 id=\"outline__2_4_2\" class=\"wp-block-heading\">\u6307\u5b9a\u53ef\u80fd\u306a\u5024\u306e\u6700\u5927\u5024<\/h4>\n\n\n<p>border-radius\u306b\u6307\u5b9a\u3067\u304d\u308b\u5024\u306f\u3001\u6700\u5927\u3067\u8981\u7d20\u306e\u5e45\u307e\u305f\u306f\u9ad8\u3055\u306e\u534a\u5206\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u8981\u7d20\u306e\u9577\u3055\u304c200px\u306e\u5834\u5408\u3001\u6307\u5b9a\u3067\u304d\u308b\u6700\u5927\u5024\u306f100px\uff0850\uff05\uff09\u3068\u306a\u308a\u307e\u3059\u30029999px\u308451\uff05\u306e\u3088\u3046\u306b\u534a\u5206\u3088\u308a\u3082\u5927\u304d\u306a\u5024\u3092\u6307\u5b9a\u3057\u3066\u3082100px\u3092\u6307\u5b9a\u3057\u305f\u306e\u3068\u7d50\u679c\u304c\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<h4 id=\"outline__2_4_3\" class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u3054\u3068\u306e\u6ce8\u610f\u70b9<\/h4>\n\n\n<p>Safari\u3067\u306fborder-radius\u304c\u52b9\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001z-index\u30d7\u30ed\u30d1\u30c6\u30a3\u306bauto\u4ee5\u5916\u3092\u6307\u5b9a\u3059\u308b\u304b\u3001will-change\u30d7\u30ed\u30d1\u30c6\u30a3\u306btransform\u3092\u6307\u5b9a\u3059\u308b\u3068\u89e3\u6c7a\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\">border-radius\u3067\u4f5c\u6210\u3055\u308c\u308b\u56f3\u5f62\u306e\u4ee3\u8868\u4f8b<\/h2>\n\n\n<p>border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u4f5c\u6210\u3055\u308c\u308b\u983b\u5ea6\u306e\u9ad8\u30443\u3064\u306e\u56f3\u5f62\u306e\u4f5c\u6210\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u6b63\u5186\u5f62<\/li>\n<li>\u6955\u5186\u5f62<\/li>\n<li>\u9577\u5186\u5f62<\/li>\n<\/ul>\n\n\n<h3 id=\"outline__3_1\" class=\"wp-block-heading\">\u6b63\u5186\u5f62<\/h3>\n\n\n<p>\u6b63\u5186\u5f62\u306f\u6b63\u65b9\u5f62\u306e\u8981\u7d20\u306b\u300cborder-radius:50%;\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010HTML\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>&lt;div&gt;\n&lt;\/div&gt;\u3000\n&lt;div class=\"a\"&gt;\n&lt;\/div&gt;<\/code><\/pre>\n\n\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>div{\n display: inline-block;\n background-color:#8FAADC;\n width:200px;\n height:200px;\n}\n.a{\n border-radius:50%;\n}<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br8.png\" class=\"post-img\">\n\n\n\n<h3 id=\"outline__3_2\" class=\"wp-block-heading\">\u6955\u5186\u5f62<\/h3>\n\n\n<p>\u6955\u5186\u5f62\u306f\u9577\u65b9\u5f62\u306b\u300cborder-radius:50%;\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>div{\n display: inline-block;\n background-color:#8FAADC;\n width:300px;\n height:200px;\n}\n.a{\n border-radius:50%;\n}<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br9.png\" class=\"post-img\">\n\n\n\n<h3 id=\"outline__3_3\" class=\"wp-block-heading\">\u9577\u5186\u5f62<\/h3>\n\n\n<p>\u9577\u5186\u5f62\u306f\u30dc\u30bf\u30f3\u306e\u30c7\u30b6\u30a4\u30f3\u306b\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u9577\u5186\u5f62\u306f\u9577\u65b9\u5f62\u306b\u300cborder-radius:9999px;\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>div{\n display: inline-block;\n background-color:#8FAADC;\n width:500px;\n height:200px;\n}\n.a{\n border-radius:9999px;\n}<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br10png\" class=\"post-img\">\n\n\n<p>9999px\u3092\u6307\u5b9a\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\u306f\u3001\u8981\u7d20\u306e\u9ad8\u3055\u3092\u5909\u66f4\u3057\u305f\u5834\u5408\u3067\u3082\u9577\u5186\u5f62\u304c\u5d29\u308c\u306a\u3044\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p>\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\">\u5c0f\u6280\u96c6<\/h2>\n\n\n\n<h3 id=\"outline__4_1\" class=\"wp-block-heading\">\u7279\u5b9a\u306e\u89d2\u306b\u306e\u307fborder-radius\u3092\u6307\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n<p>\u4e0b\u8a18\u306e\u500b\u5225\u6307\u5b9a\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>border-top-left-radius<\/td><td>\u8981\u7d20\u306e\u5de6\u4e0a\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-top-right-radius<\/td><td>\u8981\u7d20\u306e\u53f3\u4e0a\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-bottom-right-radius<\/td><td>\u8981\u7d20\u306e\u53f3\u4e0b\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><tr><td>border-bottom-left-radius<\/td><td>\u8981\u7d20\u306e\u5de6\u4e0b\u306e\u89d2\u3092\u4e38\u304f\u3059\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>border-top-left-radius:0px;\nborder-top-right-radius:100px;<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br6.png\" class=\"post-img\">\n\n\n\n<h3 id=\"outline__4_2\" class=\"wp-block-heading\">\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b<\/h3>\n\n\n<p>border-radius\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u8868\u793a\u3082\u884c\u3048\u307e\u3059\u3002<\/p>\n<p><strong>\u3010CSS\u5b9f\u884c\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><code>border-radius:50px;\nbackground:linear-gradient(to right, #0f0, #00f);<\/code><\/pre>\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/br5.png\" class=\"post-img\">\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\">HTML\/CSS\u306e\u5b66\u7fd2\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n<p>\u66f8\u7c4d\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u5b66\u7fd2\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6628\u4eca\u3067\u306f\u3001YouTube\u306a\u3069\u306e\u52d5\u753b\u30b5\u30a4\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30a4\u30c8\u306a\u3069\u3082\u5145\u5b9f\u3057\u3066\u3044\u3066\u591a\u304f\u306e\u60c5\u5831\u304c\u624b\u306b\u5165\u308a\u307e\u3059\u3002<br \/>\u305d\u3057\u3066\u3001\u3088\u308a\u52b9\u7387\u7684\u306b\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3059\u308b\u306b\u306f\u3001\u77e5\u8b58\u3092\u3064\u3051\u306a\u304c\u3089\u5b9f\u969b\u306b\u624b\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u306a\u3069\u3001\u30a4\u30f3\u30d7\u30c3\u30c8\u3068\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u72ec\u5b66\u306e\u5834\u5408\u306f\u3001\u6709\u8b58\u8005\u306b\u8cea\u554f\u304c\u3067\u304d\u305f\u308a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u3082\u3089\u3048\u308b\u3088\u3046\u306a\u74b0\u5883\u304c\u3042\u308b\u3068\u3001\u7406\u89e3\u5ea6\u304c\u6df1\u307e\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u305f\u3060\u3001HTML\/CSS\u306b\u9650\u3089\u305a\u3001IT\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u969b\u3001\u3069\u3046\u3057\u3066\u3082\u8ab2\u984c\u306b\u3076\u3064\u304b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u3088\u306d\u3002\u7279\u306b\u72ec\u5b66\u3060\u3068\u3001\u308f\u304b\u3089\u306a\u3044\u90e8\u5206\u3092\u30d7\u30ed\u306b\u8cea\u554f\u3067\u304d\u308b\u6a5f\u4f1a\u3092\u78ba\u4fdd\u3057\u306b\u304f\u304f\u3001\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u304c\u7d9a\u304d\u306b\u304f\u3044\u3068\u3044\u3046\u5074\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u72ec\u5b66\u3067\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3059\u308b\u81ea\u4fe1\u304c\u306a\u3044\u4eba\u306b\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3068\u3044\u3046\u624b\u3082\u3042\u308a\u307e\u3059\u3002\u8cbb\u7528\u306f\u639b\u304b\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5206\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3084\u3059\u3044\u3067\u3059\u3002\u3057\u3063\u304b\u308a\u3068\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3057\u3066\u5b9f\u8df5\u306b\u6d3b\u304b\u3057\u305f\u3044\u3068\u3044\u3046\u4eba\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p><span class=\"markerYellow\"><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u306a\u3089\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u304c\u304a\u3059\u3059\u3081\uff01<\/strong><\/span><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/yuudou.png\" 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 \/><strong>\u30fb\u305f\u3057\u304b\u306a\u80b2\u6210\u5b9f\u7e3e\u3068\u89aa\u8eab\u306a\u6559\u80b2\u3000\uff5e\u30bb\u30ab\u30f3\u30c9\u30ad\u30e3\u30ea\u30a2\u3092\u5168\u529b\u652f\u63f4\uff5e<\/strong><br \/><strong>\u30fb\u8b1b\u5e2b\u304c\u73fe\u5f79\u30a8\u30f3\u30b8\u30cb\u30a2\u3000\uff5e\u201c\u672c\u5f53\u201d\u306e\u958b\u767a\u30ce\u30a6\u30cf\u30a6\u3092\u76f4\u306b\u5b66\u3079\u308b\uff5e<\/strong><br \/><strong>\u30fb\u5c02\u5c5e\u8b1b\u5e2b\u304c\u5b66\u7fd2\u3092\u5fb9\u5e95\u30b5\u30dd\u30fc\u30c8\u3000\uff5e\u300c\u308f\u304b\u3089\u306a\u3044\u300d\u3092\u5fb9\u5e95\u89e3\u6c7a\uff5e<\/strong><br \/><strong>\u30fb\u5b9f\u52d9\u30d9\u30fc\u30b9\u3067\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3000\uff5e\u5b9f\u8df5\u7684\u306a\u51dd\u7e2e\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\uff5e<\/strong><\/p>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3064\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306fIT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b9\u30bf\u30fc\u30c8\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6700\u9069\u3067\u3059\u3002<br \/>\u8a71\u3092\u805e\u304d\u305f\u3044\u30fb\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u3068\u3044\u3046\u65b9\u306f<a href=\"https:\/\/techmania.jp\/lp\/2\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u304b\u3089\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\">HTML\/CSS\u90e8\u9580<\/h2>\n\n\n<ul>\n<li><a href=\"https:\/\/techmania.jp\/blog\/programming0007\/\" target=\"_blank\" 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