{"id":34069,"date":"2022-05-12T20:39:11","date_gmt":"2022-05-12T11:39:11","guid":{"rendered":"https:\/\/webst8.com\/code\/?p=34069"},"modified":"2024-08-18T08:31:16","modified_gmt":"2024-08-17T23:31:16","slug":"css-before-after","status":"publish","type":"post","link":"https:\/\/webst8.com\/code\/css-before-after\/","title":{"rendered":"\u3010CSS\u64ec\u4f3c\u8981\u7d20\u3011::before ::after\u306e\u610f\u5473\u3068\u4f7f\u3044\u65b9\u30fb\u6d3b\u7528\u4f8b"},"content":{"rendered":"<p>\u4eca\u56de\u306fCSS\u306e<span class=\"ymarker\"><strong>\u64ec\u4f3c\u8981\u7d20::before\u3001::after\u306e\u4f7f\u3044\u65b9<\/strong><\/span>\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u300cCSS\u3067\u5439\u304d\u51fa\u3057\u30c7\u30b6\u30a4\u30f3\u3092\u4f5c\u308a\u305f\u3044\u300d\u300c\u30ea\u30b9\u30c8\u306e\u5148\u982d\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u3066\u30aa\u30ea\u30b8\u30ca\u30eb\u30c7\u30b6\u30a4\u30f3\u306e\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u305f\u3044\u300d\u3068\u3044\u3063\u305f\u969b\u306b\u64ec\u4f3c\u8981\u7d20::before\u3001::after\u3092\u4f7f\u3046\u3068\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<div class=\"freebox has-title \" style=\"\"><p class=\"p-free\" style=\"font-weight:bold;\"><span class=\"p-entry-f\" style=\"font-weight:bold;\">\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3080\u3068\u5206\u304b\u308b\u3053\u3068<\/span><\/p><div class=\"free-inbox\">\n<ul>\n<li>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u57fa\u672c\u306b\u3064\u3044\u3066<\/li>\n<li>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u66f8\u304d\u65b9\u306b\u3064\u3044\u3066<\/li>\n<li>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066<\/li>\n<li>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u69d8\u3005\u306a\u6d3b\u7528\u4f8b\u306b\u3064\u3044\u3066<\/li>\n<li>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u9055\u3044\u306b\u3064\u3044\u3066<\/li>\n<\/ul>\n<\/div><\/div>\n<p><div class=\"webst-sns-follow-container\">\n<div class=\"webst-sns-follow-title\">SNS\u30d5\u30a9\u30ed\u30fc\u3088\u308d\u3057\u304f\u304a\u9858\u3044\u3057\u307e\u3059\uff01<\/p>\n<p><span style=\"font-size: 11px;\">\u65b0\u3057\u3044\u30b3\u30f3\u30c6\u30f3\u30c4\u3084\u3001\u3088\u308a\u8a73\u7d30\u306a\u89e3\u8aac\u3092\u52d5\u753b\u3084\u30b7\u30e7\u30fc\u30c8\u52d5\u753b\u3067\u304a\u5c4a\u3051\u3057\u3066\u3044\u307e\u3059\u3002\u65e5\u3005\u306e\u60c5\u5831\u53ce\u96c6\u306b\u304a\u5f79\u7acb\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/div>\n<div class=\"webst-sns-follow-row\"><a class=\"webst-sns-button webst-sns-youtube\" href=\"https:\/\/www.youtube.com\/@webst8356\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"alignnone size-full wp-image-70744\" src=\"https:\/\/webst8.com\/blog\/wp-content\/uploads\/2025\/09\/sns-logo-youtube.png\" alt=\"\" width=\"737\" height=\"289\" \/><\/a><\/div>\n<div class=\"webst-sns-follow-row\"><a class=\"webst-sns-button webst-sns-instagram\" href=\"https:\/\/www.instagram.com\/webst8_com\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"alignnone size-full wp-image-70741\" src=\"https:\/\/webst8.com\/blog\/wp-content\/uploads\/2025\/09\/sns-logo-instagram.png\" alt=\"\" width=\"250\" height=\"315\" \/><\/a><br \/>\n<a class=\"webst-sns-button webst-sns-tiktok\" href=\"https:\/\/www.tiktok.com\/@webst8_com\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"alignnone size-full wp-image-70742\" src=\"https:\/\/webst8.com\/blog\/wp-content\/uploads\/2025\/09\/sns-logo-tiktok.png\" alt=\"\" width=\"214\" height=\"305\" \/><\/a><br \/>\n<a class=\"webst-sns-button webst-sns-twitter-x\" href=\"https:\/\/x.com\/mattsunkei\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"alignnone size-full wp-image-70743\" src=\"https:\/\/webst8.com\/blog\/wp-content\/uploads\/2025\/09\/sns-logo-x.png\" alt=\"\" width=\"219\" height=\"301\" \/><\/a><\/div>\n<\/div>\n<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3068\u306f\uff1f<\/h2>\n<p>before\u3001after\u306f\u8981\u7d20\u306e\u4e00\u90e8\u306b\u5bfe\u3057\u3066\u306e\u307fCSS\u3092\u52b9\u304b\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u300c\u64ec\u4f3c\u8981\u7d20\u300d\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u306e1\u3064\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u3092\u4f7f\u3046\u3068<span class=\"ymarker\"><strong>CSS\u3067\u5bfe\u8c61\u3068\u306a\u308b\u8981\u7d20\u306e\u5185\u5074\u306b\u5b50\u8981\u7d20\u3068\u3057\u3066\u64ec\u4f3c\u7684\u306a\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/strong><\/span>\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"komozi\"><strong>\u25a0(\u53c2\u8003)Google Chrome\u306e\u691c\u8a3c\u753b\u9762\u3067\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u78ba\u8a8d<\/strong><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone wp-image-34076 size-full\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool.jpg\" alt=\"Google Chrome\u306e\u691c\u8a3c\u753b\u9762\u3067\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u4f8b\" width=\"1500\" height=\"1107\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool.jpg 1500w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool-300x221.jpg 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool-1024x756.jpg 1024w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool-768x567.jpg 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool-343x254.jpg 343w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-chrome-developper-tool-202x150.jpg 202w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/span><\/p>\n<p>\u4f8b\u3048\u3070\u4e0a\u306e\u4f8b\u3067\u306f\u3001h1\u30bf\u30b0\u3067\u56f2\u3063\u3066\u3044\u308b\u7b87\u6240\u306f\u300c\u3053\u3053\u306b\u30bf\u30a4\u30c8\u30eb\u304c\u5165\u308a\u307e\u3059\u300d\u3068\u66f8\u304b\u308c\u305f\u90e8\u5206\u3060\u3051\u3067\u3059\u304c\u3001\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u3063\u3066\u3053\u3061\u3089\u306e\u524d\u5f8c\u306b\u300cbefore\u300d\u300cafter\u300d\u3068\u3044\u3063\u305f\u30c6\u30ad\u30b9\u30c8\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u306a\u304abefore\u3068after\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u3001<strong>\u64ec\u4f3c\u7684\u306a\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u4f4d\u7f6e\u304c\u7570\u306a\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3001before\u306f<strong>\u5bfe\u8c61\u3068\u306a\u308b\u8981\u7d20\u306e\u76f4\u524d<\/strong>\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3067\u304d\u308b\u306e\u306b\u5bfe\u3057\u3001after\u306f<strong>\u76f4\u5f8c<\/strong>\u306b\u8981\u7d20\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-34075\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference.jpg\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u9055\u3044\" width=\"2000\" height=\"1125\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference.jpg 2000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference-300x169.jpg 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference-1024x576.jpg 1024w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference-768x432.jpg 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-difference-1536x864.jpg 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<th style=\"width: 30%\">\u64ec\u4f3c\u8981\u7d20before<\/th>\n<td style=\"width: 70%\">\u8981\u7d20\u306e<span class=\"hutoaka\">\u76f4\u524d<\/span>\u306b\u64ec\u4f3c\u7684\u306a\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<th style=\"width: 30%\">\u64ec\u4f3c\u8981\u7d20after<\/th>\n<td style=\"width: 70%\">\u8981\u7d20\u306e<span class=\"hutoaka\">\u76f4\u5f8c<\/span>\u306b\u64ec\u4f3c\u7684\u306a\u8981\u7d20\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u66f8\u304d\u65b9<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u5b9f\u969b\u306b\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u66f8\u304d\u65b9\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u3044\u305f\u3044\u5834\u5408\u306f\u3001CSS\u30bb\u30ec\u30af\u30bf\u30fc\u306e\u5f8c\u308d\u306b\u30b3\u30ed\u30f3(:)\u30922\u3064\u66f8\u3044\u3066\u304b\u3089\u300cbefore\u300d\u300cafter\u300d\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001content\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u8ffd\u52a0\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af\u3067\u56f2\u3063\u3066\u5165\u529b\u3057\u3066\u3042\u3052\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-34081\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use.jpg\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4f7f\u3044\u65b9\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u56f3\u3002\" width=\"2000\" height=\"1125\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use.jpg 2000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-300x169.jpg 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-1024x576.jpg 1024w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-768x432.jpg 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-1536x864.jpg 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/p>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;h1&gt;\u3053\u3053\u306b\u30bf\u30a4\u30c8\u30eb\u304c\u5165\u308a\u307e\u3059&lt;\/h1&gt;<\/pre>\n<pre class=\"lang:css decode:true\" title=\"style.css\">h1::before {\r\n  content: \"before\";\r\n  color: red; \/* \u64ec\u4f3c\u8981\u7d20before\u3067\u8ffd\u52a0\u3057\u305f\u8981\u7d20\u306e\u8272\u3092\u5909\u3048\u308b\u70ba\u306b\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002 *\/ \r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34082\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample.png\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u306e\u4f7f\u7528\u30c7\u30e2\u3002\" width=\"1000\" height=\"668\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-768x513.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u4e0a\u306e\u4f8b\u3067\u306f\u3001\u64ec\u4f3c\u8981\u7d20before\u3092\u4f7f\u3063\u3066\u300cbefore\u300d\u3068\u3044\u3046\u30c6\u30ad\u30b9\u30c8\u3092\u8981\u7d20\u306e\u76f4\u524d\u306b\u5165\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u8ffd\u52a0\u3060\u3051\u3067\u306a\u304f\u753b\u50cf\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3001\u305d\u306e\u5834\u5408\u306fcontent\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u300curl(\u753b\u50cf\u306e\u30d1\u30b9)\u300d\u3068\u3044\u3063\u305f\u5f62\u3067\u5165\u529b\u3057\u3066\u3042\u3052\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-34083\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img.jpg\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4f7f\u3044\u65b9(\u753b\u50cf\u306e\u8ffd\u52a0)\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u56f3\u3002\" width=\"2000\" height=\"1125\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img.jpg 2000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img-300x169.jpg 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img-1024x576.jpg 1024w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img-768x432.jpg 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-how-to-use-img-1536x864.jpg 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/p>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;h1&gt;\u3053\u3053\u306b\u30bf\u30a4\u30c8\u30eb\u304c\u5165\u308a\u307e\u3059&lt;\/h1&gt;<\/pre>\n<pre class=\"lang:css decode:true \" title=\"style.css\">h1::before {\r\n  content: url(img\/check.png);\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34084\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-img.png\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u306e\u4f7f\u7528\u30c7\u30e2(\u753b\u50cf\u306e\u8ffd\u52a0)\u3002\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-img.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-img-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-img-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u306a\u304a\u3001\u7279\u306b\u633f\u5165\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3084\u753b\u50cf\u304c\u306a\u3044\u3068\u3044\u3063\u305f\u5834\u5408\u3067\u3082\u3001\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0\u76ee\u7684\u3067\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f<span class=\"hutoaka\">\u5fc5\u305acontent\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/span>\u306e\u3067\u3001\u305d\u306e\u5834\u5408\u306f\u5024\u3092\u7a7a(\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af\u306e\u307f)\u306b\u3057\u3066content\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;h1&gt;\u3053\u3053\u306b\u30bf\u30a4\u30c8\u30eb\u304c\u5165\u308a\u307e\u3059&lt;\/h1&gt;<\/pre>\n<pre class=\"lang:css decode:true\" title=\"style.css\">h1::before {\r\n  content: \"\";\r\n  display: inline-block;\r\n  width: 30px;\r\n  height: 30px;\r\n  border: 2px solid red;\r\n  border-radius: 50%;\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34085\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-only-styling.png\" alt=\"\u64ec\u4f3c\u8981\u7d20before\u306e\u4f7f\u7528\u30c7\u30e2(\u8ffd\u52a0\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3084\u753b\u50cf\u304c\u306a\u3044\u5834\u5408)\u3002\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-only-styling.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-only-styling-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-sample-only-styling-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"st-mybox  has-title st-mybox-class\" style=\"background:#FFFDE7;border-color:#FFD54F;border-width:2px;border-radius:5px;margin: 25px 0 25px 0;\"><p class=\"st-mybox-title\" style=\"color:#FFD54F;font-weight:bold;text-shadow: #fff 3px 0px 0px, #fff 2.83487px 0.981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff 0.705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px 0.42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff 0.850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background: linear-gradient(0deg,#FFFDE7 0%,#FFFDE7 55%,rgba(0,0,0,0) 55%,rgba(0,0,0,0) 100%);\"><i class=\"st-fa st-svg-check-circle st-css-no\" aria-hidden=\"true\"><\/i>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u7528\u3059\u308b\u4e0a\u3067\u306e\u30dd\u30a4\u30f3\u30c8<\/p><div class=\"st-in-mybox\">\n<div class=\"maruck\">\n<ul>\n<li>\u8981\u7d20\u306e\u524d\u5f8c\u306b\u30c6\u30ad\u30b9\u30c8\u3092\u8ffd\u52a0\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30bb\u30ec\u30af\u30bf\u306e\u5f8c\u308d\u306b\u300c::before\u300d\u300c::after\u300d\u3068\u8a18\u8ff0\u3057\u3001<span class=\"huto ymarker\">content\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u8ffd\u52a0\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3092\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af\u3067\u56f2\u3063\u3066\u5165\u529b<\/span>\u3059\u308b\u3002<\/li>\n<li>\u8981\u7d20\u306e\u524d\u5f8c\u306b\u753b\u50cf\u3092\u8ffd\u52a0\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30bb\u30ec\u30af\u30bf\u306e\u5f8c\u308d\u306b\u300c::before\u300d\u300c::after\u300d\u3068\u8a18\u8ff0\u3057\u3001<span class=\"huto ymarker\">content\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u300curl(\u753b\u50cf\u306e\u30d1\u30b9)\u300d<\/span>\u3068\u3044\u3063\u305f\u5f62\u3067\u5165\u529b\u3059\u308b\u3002<\/li>\n<li>\u7279\u306b\u633f\u5165\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u3084\u753b\u50cf\u304c\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0\u76ee\u7684\u3067\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f<span class=\"hutoaka\">\u5fc5\u305acontent\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/span>\u306e\u3067\u3001\u305d\u306e\u5834\u5408\u306f<span class=\"huto ymarker\">\u5024\u3092\u7a7a(\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af\u306e\u307f)\u306b\u3057\u3066content\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a<\/span>\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n<h2>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4f7f\u3044\u65b9\u306b\u8aac\u660e\u3057\u307e\u3057\u305f\u304c\u3001\u300c<span class=\"rmarker\">\u524d\u5f8c\u306b\u30c6\u30ad\u30b9\u30c8\u3092\u8ffd\u52a0\u3057\u305f\u3044\u3060\u3051\u306a\u304b\u3089\u308f\u3056\u308f\u3056\u64ec\u4f3c\u8981\u7d20beofre\u3001after\u3092\u4f7f\u308f\u306a\u3044\u3067\u3001\u76f4\u63a5HTML\u30bf\u30b0\u5185\u306b\u8981\u7d20\u3092\u66f8\u3044\u3066\u304a\u3044\u305f\u3089\u826f\u3044\u306e\u3067\u306f\u306a\u3044\u306e\u304b\uff1f<\/span>\u300d\u3068\u7591\u554f\u306b\u601d\u308f\u308c\u308b\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u306f<span class=\"grmarker\">\u300cHTML\u306e\u8a18\u8ff0\u3092\u5897\u3084\u3059\u3053\u3068\u306a\u304fCSS\u5074\u304b\u3089\u69d8\u3005\u306a\u8868\u73fe\u304c\u3067\u304d\u308b\u300d<\/span>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p>\n<p>\u8a73\u3057\u304f\u306f\u5f8c\u8ff0\u3057\u307e\u3059\u304c\u3001\u305f\u3068\u3048\u3070\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u5439\u304d\u51fa\u3057\u3084NEW\u30a2\u30a4\u30b3\u30f3\u3092before\u3084after\u3067\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n<span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34094\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi.png\" alt=\"\u6d3b\u7528\u4f8b\u2464: \u5439\u304d\u51fa\u3057\u3092\u4f5c\u308b\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34090\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon.png\" alt=\"\u6d3b\u7528\u4f8b\u2461: NEW\u30a2\u30a4\u30b3\u30f3\u3092\u4f5c\u308b\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u7279\u5b9a\u306eclass\u540d\u304c\u3064\u3044\u3066\u3044\u308b\u3082\u306e\u306e\u524d\u306b\u3060\u3051\u300eNEW\u300f\u3068\u4ed8\u3051\u305f\u3044\u3084\u5439\u304d\u51fa\u3057\u3092\u3064\u3051\u305f\u3044\u3001\u3068\u3044\u3063\u305f\u3053\u3068\u304c\u3067\u304d\u5f8c\u3005\u4e00\u62ec\u3067\u6d88\u3059\u3068\u3044\u3063\u305f\u3053\u3068\u3082\u7c21\u5358\u306b\u3067\u304d\u308b\u306e\u3067\u3001\u3053\u306e\u3088\u3046\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u5834\u5408\u64ec\u4f3c\u8981\u7d20\u306e\u65b9\u304c\u7ba1\u7406\u304c\u3057\u3084\u3059\u3044\u3068\u3044\u3063\u305f\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<div class=\"list-frame primary\">\n<p class=\"list-frame-p\">\u64ec\u4f3c\u8981\u7d20\u3067\u633f\u5165\u3057\u305f\u6587\u5b57\u306f\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u306a\u3044<\/p>\n<p><span class=\"ymarker\"><strong>\u64ec\u4f3c\u8981\u7d20\u3067\u633f\u5165\u3057\u305f\u6587\u5b57\u306f\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3055\u308c\u306a\u3044<\/strong><\/span>\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u4f8b\u3067\u306f\u3001\u672c\u8a9e\u306e\u300c\u30a2\u30d0\u30a6\u30c8\u300d\u306e\u307f\u3092h1\u30bf\u30b0\u3067\u56f2\u3044\u3001\u82f1\u8a9e\u306e\u300cABOUT\u300d\u306b\u95a2\u3057\u3066\u306f\u64ec\u4f3c\u8981\u7d20after\u3092\u4f7f\u7528\u3057\u3066\u8868\u793a\u3055\u305b\u305f\u4f8b\u3067\u3059\u304c\u3001<\/p>\n<p>\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u306fafter\u3067\u66f8\u3044\u305f\u82f1\u8a9e\u6587\u5b57\u306b\u95a2\u3057\u3066\u306f\u901a\u5e38\u306eHTML\u4e0a\u306e\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u306f\u8a8d\u8b58\u3057\u306a\u3044\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34077\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading.png\" alt=\"\u65e5\u672c\u8a9e\u30bf\u30a4\u30c8\u30eb\u306e\u898b\u51fa\u3057\u306e\u4e0b\u306b\u82f1\u8a9e\u30bf\u30a4\u30c8\u30eb\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u4f8b\" width=\"1000\" height=\"662\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading-300x199.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading-768x508.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3067\u3059\u306e\u3067\u3001\u691c\u7d22\u30a8\u30f3\u30b8\u30f3\u4e0a\u306e\u30c6\u30ad\u30b9\u30c8\u3084\u753b\u50cf\u3068\u3057\u3066\u8a8d\u8b58\u3055\u305b\u305f\u3044\u5834\u5408\u306f\u64ec\u4f3c\u8981\u7d20\u3067\u306f\u306a\u304fHTML\u8981\u7d20\u3067\u8a18\u8ff0\u3059\u308b\u65b9\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002\n<\/p><\/div>\n<p>&nbsp;<\/p>\n<h2>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u69d8\u3005\u306a\u6d3b\u7528\u4f8b<\/h2>\n<p>\u6b21\u306b\u3001\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u69d8\u3005\u306a\u6d3b\u7528\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u4e0b\u8a18\u306e5\u3064\u306e\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u6d3b\u7528\u4f8b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059(\u203b\u30b3\u30fc\u30c9\u306e\u4f8b\u306f\u8aac\u660e\u7528\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u305f\u3081\u3042\u304f\u307e\u3067\u7c21\u5358\u306a\u8a18\u8ff0\u3057\u3066\u3044\u307e\u3059)\u3002<\/p>\n<div class=\"greenbox\">\n<p><strong>\u25a0\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u69d8\u3005\u306a\u6d3b\u7528\u4f8b<\/strong><\/p>\n<div class=\"maruck\">\n<ul>\n<li>\u6d3b\u7528\u4f8b\u2460: \u898b\u51fa\u3057\u4e0b\u306a\u3069\u306b\u82f1\u5b57\u3092\u8868\u793a\u3059\u308b<\/li>\n<li>\u6d3b\u7528\u4f8b\u2461: NEW\u30a2\u30a4\u30b3\u30f3\u3092\u4f5c\u308b<\/li>\n<li>\u6d3b\u7528\u4f8b\u2462: \u30ea\u30b9\u30c8\u30de\u30fc\u30ab\u30fc\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b<\/li>\n<li>\u6d3b\u7528\u4f8b\u2463: \u6587\u7ae0\u3092\u8a18\u53f7\u3067\u56f2\u3046<\/li>\n<li>\u6d3b\u7528\u4f8b\u2464: \u5439\u304d\u51fa\u3057\u3092\u4f5c\u308b<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>\u6d3b\u7528\u4f8b\u2460: \u898b\u51fa\u3057\u4e0b\u306a\u3069\u306b\u82f1\u5b57\u3092\u8868\u793a\u3059\u308b<\/h3>\n<pre class=\"lang:default decode:true\" title=\"index.html\">&lt;h1&gt;\u30a2\u30d0\u30a6\u30c8&lt;\/h1&gt;<\/pre>\n<pre class=\"lang:css decode:true\" title=\"style.css\">h1{\r\n  text-align: center;\r\n}\r\n\r\nh1::after{\r\n  content: \"ABOUT\";\r\n  display: block;\r\n  font-size: 16px;\r\n  color: #666;\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone wp-image-34077 size-full\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading.png\" alt=\"\u6d3b\u7528\u4f8b\u2460: \u898b\u51fa\u3057\u4e0b\u306a\u3069\u306b\u82f1\u5b57\u3092\u8868\u793a\u3059\u308b\" width=\"1000\" height=\"662\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading-300x199.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-heading-768x508.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3053\u3061\u3089\u306e\u4f8b\u3067\u306f\u64ec\u4f3c\u8981\u7d20after\u3092\u4f7f\u3063\u3066\u3001\u8981\u7d20\u306e\u76f4\u5f8c\u306b\u300cABOUT\u300d\u3068\u3044\u3063\u305f\u82f1\u6587\u5b57\u3092\u5165\u529b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30dd\u30a4\u30f3\u30c8\u306f<strong>display\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u7528\u3057\u3066\u64ec\u4f3c\u8981\u7d20after\u3092\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20\u306b\u5909\u63db<\/strong>\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p>\n<p>\u64ec\u4f3c\u8981\u7d20before\u3001after\u3092\u4f7f\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u64ec\u4f3c\u7684\u8981\u7d20\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u306e\u6027\u683c\u3092\u6709\u3059\u308b\u70ba\u3001\u30c6\u30ad\u30b9\u30c8\u304c\u6539\u884c\u3055\u308c\u307e\u305b\u3093\u304c\u3001\u3053\u308c\u3092\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u65e5\u672c\u8a9e\u6587\u5b57\u3068\u82f1\u8a9e\u6587\u5b57\u306e\u9593\u306b\u6539\u884c\u304c\u5165\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"list-frame primary\">\n<p class=\"list-frame-p\">(\u4f75\u305b\u3066\u8aad\u307f\u305f\u3044\u95a2\u9023\u8a18\u4e8b)<\/p>\n<p><a href=\"https:\/\/webst8.com\/code\/css-display\/\">\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u30fb\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20\u3068CSS\u300cdisplay\u300d\u306e\u4f7f\u3044\u65b9<\/a><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-4226\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/html-block-inline-explanation.png\" alt=\"HTML\u3000\u30d6\u30ed\u30c3\u30af\u30ec\u30d9\u30eb\u8981\u7d20\u3068\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u306e\u9055\u3044\u3068\u7279\u5fb4\" width=\"1000\" height=\"543\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/html-block-inline-explanation.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/html-block-inline-explanation-300x163.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/html-block-inline-explanation-768x417.png 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/html-block-inline-explanation-718x390.png 718w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>\u6d3b\u7528\u4f8b\u2461: NEW\u30a2\u30a4\u30b3\u30f3\u3092\u4f5c\u308b<\/h3>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;div class=\"new\"&gt;&lt;\/div&gt;<\/pre>\n<pre class=\"lang:css decode:true\" title=\"style.css\">div{\r\n  width: 400px;\r\n  height: 300px;\r\n  background-color: #ccc;\r\n}\r\n\r\n.new{\r\n  position: relative;\r\n}\r\n\r\n.new::before{\r\n  content: \"NEW\";\r\n  padding: 5px 10px;\r\n  background-color: orange;\r\n  color: white;\r\n  position: absolute;\r\n  top: 0;\r\n  left: 0;\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34090\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon.png\" alt=\"\u6d3b\u7528\u4f8b\u2461: NEW\u30a2\u30a4\u30b3\u30f3\u3092\u4f5c\u308b\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-new-icon-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3053\u3061\u3089\u306e\u4f8b\u3067\u306f\u300cNEW\u300d\u3068\u66f8\u304b\u308c\u305f\u30c6\u30ad\u30b9\u30c8\u3092\u64ec\u4f3c\u8981\u7d20\u3092\u4f7f\u7528\u3057\u3066\u8868\u793a\u3055\u305b\u3001\u5bfe\u8c61\u3068\u306a\u308b\u8981\u7d20\u306b\u306f\u300cposition: relative;\u300d\u3001\u64ec\u4f3c\u8981\u7d20\u306b\u5bfe\u3057\u3066\u306f\u300cposition: absolute\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u64ec\u4f3c\u8981\u7d20\u3067\u8ffd\u52a0\u3057\u305f\u30c6\u30ad\u30b9\u30c8\u3092\u4efb\u610f\u306e\u4f4d\u7f6e\u306b\u914d\u7f6e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u64ec\u4f3c\u8981\u7d20\u306b\u5bfe\u3057\u3066position\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"list-frame primary\">\n<p class=\"list-frame-p\">(\u4f75\u305b\u3066\u8aad\u307f\u305f\u3044\u95a2\u9023\u8a18\u4e8b)<\/p>\n<p><a href=\"https:\/\/webst8.com\/code\/css-position\/\">\u3010\u521d\u5fc3\u8005\u5411\u3051\u3011CSS position\u3067\u4f4d\u7f6e\u6307\u5b9a\u3067\u3059\u308b\u65b9\u6cd5\u30fb\u4f7f\u3044\u65b9<\/a><\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>\u6d3b\u7528\u4f8b\u2462: \u30ea\u30b9\u30c8\u30de\u30fc\u30ab\u30fc\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b<\/h3>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;ul&gt;\r\n  &lt;li&gt;\u3053\u3053\u306b\u30c6\u30ad\u30b9\u30c8\u304c\u5165\u308a\u307e\u3059&lt;\/li&gt;\r\n  &lt;li&gt;\u3053\u3053\u306b\u30c6\u30ad\u30b9\u30c8\u304c\u5165\u308a\u307e\u3059&lt;\/li&gt;\r\n  &lt;li&gt;\u3053\u3053\u306b\u30c6\u30ad\u30b9\u30c8\u304c\u5165\u308a\u307e\u3059&lt;\/li&gt;\r\n&lt;\/ul&gt;<\/pre>\n<pre class=\"lang:css decode:true\" title=\"style.css\">ul{\r\n  list-style-type: none;\r\n}\r\n\r\nli{\r\n  font-size: 30px;\r\n}\r\n\r\nli::before{\r\n  content: url(img\/check.png);\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34093\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-list-marker.png\" alt=\"\u6d3b\u7528\u4f8b\u2462: \u30ea\u30b9\u30c8\u30de\u30fc\u30ab\u30fc\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-list-marker.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-list-marker-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-list-marker-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3053\u3061\u3089\u306e\u4f8b\u3067\u306fli\u30bf\u30b0\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u4ed8\u3044\u3066\u3044\u308b\u30ea\u30b9\u30c8\u30de\u30fc\u30ab\u30fc\u3092\u975e\u8868\u793a\u306b\u3057\u3066\u304a\u304d\u3001\u4ee3\u308f\u308a\u306b\u64ec\u4f3c\u8981\u7d20before\u3092\u4f7f\u7528\u3057\u3066\u6e96\u5099\u3057\u3066\u304a\u3044\u305f\u753b\u50cf\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u88dc\u8db3\u3067\u3059\u304c\u3001\u753b\u50cf\u3067\u306f\u306a\u304f\u300cFont Awesome\u300d\u306a\u3069\u3067\u4f7f\u7528\u3067\u304d\u308b\u30a2\u30a4\u30b3\u30f3\u30d5\u30a9\u30f3\u30c8\u3092\u7591\u4f3c\u8981\u7d20\u3067\u8868\u793a\u3055\u305b\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"sb-type-drop\">\n\t<div class=\"sb-subtype-a\">\n\t\t<div class=\"sb-speaker\">\n\t\t\t<div class=\"sb-icon\">\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/webst8.com\/code\/wp-content\/plugins\/speech-bubble\/img\/keisuke.jpg\" class=\"sb-icon\">\n\t\t\t<\/div>\n\t\t\t<div class=\"sb-name\"><\/div>\n\t\t<\/div>\n\t\t<div class=\"sb-content\">\n\t\t\t<div class=\"sb-speech-bubble\">\u64ec\u4f3c\u8981\u7d20before\u3001after\u3067Font Awesome\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u3053\u3053\u3067\u306f\u89e3\u8aac\u3057\u307e\u305b\u3093\u304c\u3001\u300cFont Awesome \u30a2\u30a4\u30b3\u30f3\u30d5\u30a9\u30f3\u30c8\u300d\u306a\u3069\u3067\u691c\u7d22\u3059\u308b\u3068\u3001\u8a2d\u5b9a\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u30d6\u30ed\u30b0\u8a18\u4e8b\u304c\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u306e\u3067\u53c2\u8003\u306b\u3055\u308c\u308b\u3068\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>\u6d3b\u7528\u4f8b\u2463: \u6587\u7ae0\u3092\u8a18\u53f7\u3067\u56f2\u3046<\/h3>\n<pre class=\"lang:default decode:true\" title=\"index.html\">&lt;h1&gt;\u3053\u3053\u306b\u30bf\u30a4\u30c8\u30eb\u304c\u5165\u308a\u307e\u3059&lt;\/h1&gt;<\/pre>\n<pre class=\"lang:default decode:true\" title=\"style.css\">h1:before{\r\n  content: '\u300e';\r\n  color: orange;\r\n}\r\n\r\nh1:after{\r\n  content: '\u300f';\r\n  color: orange;\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34089\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-symbol.png\" alt=\"\u6d3b\u7528\u4f8b\u2463: \u6587\u7ae0\u3092\u8a18\u53f7\u3067\u56f2\u3046\u3002\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-symbol.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-symbol-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-symbol-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3053\u3061\u3089\u306e\u4f8b\u3067\u306f\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4e21\u65b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8981\u7d20\u306e\u524d\u5f8c\u306b\u9264\u62ec\u5f27\u3092\u8868\u793a\u3055\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u6d3b\u7528\u4f8b\u2464: \u5439\u304d\u51fa\u3057\u3092\u4f5c\u308b<\/h3>\n<pre class=\"lang:default decode:true \" title=\"index.html\">&lt;div class=\"fukidashi\"&gt;\u3053\u3053\u306b\u30c6\u30ad\u30b9\u30c8\u304c\u5165\u308a\u307e\u3059\u3002&lt;\/div&gt;<\/pre>\n<pre class=\"lang:css decode:true \" title=\"style.css\">.fukidashi{\r\n  max-width: 300px;\r\n  padding: 30px 0;\r\n  text-align: center;\r\n  position: relative;\r\n  background-color: #ccc;\r\n  margin-left: 30px;\r\n}\r\n\r\n.fukidashi::before{\r\n  content: \"\";\r\n  display: block;\r\n  width: 20px;\r\n  height: 20px;\r\n  position: absolute;\r\n  left: -10px;\r\n  top: 50%;\r\n  transform: translateY(-50%) rotate(45deg);\r\n  background-color: #ccc;\r\n}<\/pre>\n<p><span class=\"photoline\"><img decoding=\"async\" class=\"alignnone size-full wp-image-34094\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi.png\" alt=\"\u6d3b\u7528\u4f8b\u2464: \u5439\u304d\u51fa\u3057\u3092\u4f5c\u308b\" width=\"1000\" height=\"667\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi.png 1000w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi-300x200.png 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2022\/03\/before-after-usage-fukidashi-768x512.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/span><\/p>\n<p>\u3053\u3061\u3089\u306e\u4f8b\u3067\u306f\u64ec\u4f3c\u8981\u7d20before\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5439\u304d\u51fa\u3057\u306e\u4e09\u89d2\u306e\u90e8\u5206\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3053\u3061\u3089\u3067\u306f\u30ec\u30a4\u30a2\u30a6\u30c8\u76ee\u7684\u3067\u64ec\u4f3c\u8981\u7d20before\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u70ba\u3001content\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306f\u7a7a\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n<div class=\"sb-type-drop\">\n\t<div class=\"sb-subtype-a\">\n\t\t<div class=\"sb-speaker\">\n\t\t\t<div class=\"sb-icon\">\n\t\t\t\t<img decoding=\"async\" src=\"https:\/\/webst8.com\/code\/wp-content\/plugins\/speech-bubble\/img\/keisuke.jpg\" class=\"sb-icon\">\n\t\t\t<\/div>\n\t\t\t<div class=\"sb-name\"><\/div>\n\t\t<\/div>\n\t\t<div class=\"sb-content\">\n\t\t\t<div class=\"sb-speech-bubble\">\u3053\u306e\u4f8b\u306e\u3088\u3046\u306b\u7279\u306b\u8ffd\u52a0\u3057\u305f\u3044\u30c6\u30ad\u30b9\u30c8\u304c\u306a\u3044\u5834\u5408\u3067\u3082<span class=\"hutoaka\">content\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u6307\u5b9a\u306f\u5fc5\u9808<\/span>\u3067\u3059\u306e\u3067\u3001\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>\u307e\u3068\u3081\u30fb\u77e5\u3063\u3066\u304a\u304f\u3068\u4fbf\u5229\u306a\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4f7f\u3044\u65b9\uff01<\/h2>\n<p>\u307e\u3068\u3081\u3067\u3059\u3002\u4eca\u56de\u306f<span class=\"ymarker\"><strong>\u64ec\u4f3c\u8981\u7d20before\u3001after\u306e\u4f7f\u3044\u65b9<\/strong><\/span>\u306b\u3064\u3044\u3066\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<div class=\"st-mybox  has-title st-mybox-class\" style=\"background:#FFFDE7;border-color:#FFD54F;border-width:2px;border-radius:5px;margin: 25px 0 25px 0;\"><p class=\"st-mybox-title\" style=\"color:#FFD54F;font-weight:bold;text-shadow: #fff 3px 0px 0px, #fff 2.83487px 0.981584px 0px, #fff 2.35766px 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href=\"https:\/\/www.youtube.com\/channel\/UCYIqpw7ZJFgMGMSLhWq83Fg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel.jpg\" alt=\"WEBST8\u3000YouTube Channel\u3000\u958b\u8a2d\" width=\"2428\" height=\"1104\" class=\"alignnone size-full wp-image-24529\" srcset=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel.jpg 2428w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel-300x136.jpg 300w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel-1024x466.jpg 1024w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel-768x349.jpg 768w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel-1536x698.jpg 1536w, https:\/\/webst8.com\/code\/wp-content\/uploads\/2021\/05\/webst8-youtube-channel-2048x931.jpg 2048w\" sizes=\"(max-width: 2428px) 100vw, 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src=\"https:\/\/webst8.com\/code\/wp-content\/uploads\/2018\/04\/mailmagazin-banar-2.png\" style=\"width:100%\"><\/a><\/div>\n\n  --><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306fCSS\u306e\u64ec\u4f3c\u8981\u7d20::before\u3001::after\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002 \u300cCSS\u3067\u5439\u304d\u51fa\u3057\u30c7\u30b6\u30a4\u30f3\u3092\u4f5c\u308a\u305f\u3044\u300d\u300c\u30ea\u30b9\u30c8\u306e\u5148\u982d\u306b\u597d\u304d\u306a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u3066\u30aa\u30ea\u30b8\u30ca\u30eb\u30c7\u30b6\u30a4\u30f3\u306e\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u305f\u3044\u300d\u3068\u3044\u3063 &#8230; 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