{"id":3017,"date":"2020-04-29T11:19:19","date_gmt":"2020-04-29T02:19:19","guid":{"rendered":"https:\/\/naoya-ono.com\/blog\/?p=3017"},"modified":"2020-04-29T11:19:19","modified_gmt":"2020-04-29T02:19:19","slug":"css-centering","status":"publish","type":"post","link":"https:\/\/naoya-ono.com\/blog\/css-centering\/","title":{"rendered":"\u3010CSS\u3011\u6587\u5b57\u3084\u753b\u50cf\u306a\u3069\u306e\u8981\u7d20\u3092\u4e2d\u592e\u5bc4\u305b\u306b\u3059\u308b\u65b9\u6cd5\u307e\u3068\u3081"},"content":{"rendered":"<p>CSS\u3092\u4f7f\u3063\u3066\u8981\u7d20\u3092\u4e2d\u592e\u5bc4\u305b\u308b\u3053\u3068\u3063\u3066\u3088\u304f\u3042\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3067\u3082\u3001\u4f55\u5ea6\u4f7f\u3063\u3066\u3066\u3082\u300c\u3042\u308c\uff1f\u3069\u30fc\u3084\u3063\u3066\u66f8\u304f\u3093\u3060\u3063\u3051\uff1f\u300d\u3063\u3066\u5fd8\u308c\u308b\u3053\u3068\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n<p>\u305d\u3053\u3067\u3001\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u8981\u7d20\u3092\u4e2d\u592e\u306b\u5bc4\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u30b5\u30af\u30c3\u3068\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\">\u5de6\u53f3\u306e\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/a><ul><li><a href=\"#1_p\">1. \u6587\u5b57\uff08p\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/a><\/li><li><a href=\"#2_span\">2. \u6587\u5b57\uff08span\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/a><\/li><li><a href=\"#3_img\">3. \u753b\u50cf\uff08img\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/a><\/li><li><a href=\"#4\">4. \u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306e\u4e2d\u592e\u5bc4\u305b<\/a><\/li><\/ul><\/li><li><a href=\"#i-2\">\u4e0a\u4e0b\u306e\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/a><ul><li><a href=\"#1\">1. \u6587\u5b57\u3092\u4e0a\u4e0b\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5\uff08\u6587\u5b57\u5217\u304c\uff11\u884c\u306e\u5834\u5408\uff09<\/a><\/li><li><a href=\"#2\">2. \u8981\u7d20\u3092\u4e0a\u4e0b\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5<\/a><\/li><\/ul><\/li><li><a href=\"#i-3\">\u4e0a\u4e0b\u5de6\u53f3\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/a><ul><li><a href=\"#1_position\">1. position\u3092\u4f7f\u3063\u3066\u771f\u3093\u4e2d\u5bc4\u305b\u3059\u308b\u65b9\u6cd5<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h2 class=\"hh hh5 pastel-bc\" id=\"i-0\"><span id=\"i\">\u5de6\u53f3\u306e\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/span><\/h2>\n<h3 id=\"i-1\"><span id=\"1_p\">1. \u6587\u5b57\uff08p\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/span><\/h3>\n<p>p\u30bf\u30b0\u5185\u306e\u6587\u7ae0\u3092\u4e2d\u592e\u306b\u5bc4\u305b\u305f\u3044\u5834\u5408\u306f\u3001<span class=\"keiko_yellow\"><strong>text-align:center<\/strong><\/span> \u3092\u5f53\u3066\u3066\u3042\u3052\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<p class=\"codepen\" data-height=\"265\" data-theme-id=\"dark\" data-default-tab=\"css,result\" data-user=\"jun_pinoy\" data-slug-hash=\"QWjgXBQ\" style=\"height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\" data-pen-title=\"QWjgXBQ\"><span>See the Pen <a href=\"https:\/\/codepen.io\/jun_pinoy\/pen\/QWjgXBQ\"><br \/>\nQWjgXBQ<\/a> by \u30aa\u30ce\uff20\u30d5\u30a3\u30ea\u30d4\u30f3(\u305d\u308d\u305d\u308d\u5e30\u308a\u305f\u3044) (<a href=\"https:\/\/codepen.io\/jun_pinoy\">@jun_pinoy<\/a>)<br \/>\non <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span><\/p>\n<p><script async src=\"https:\/\/static.codepen.io\/assets\/embed\/ei.js\"><\/script><\/p>\n<h3 id=\"i-2\"><span id=\"2_span\">2. \u6587\u5b57\uff08span\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/span><\/h3>\n<p>span\u30bf\u30b0\u306f\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u306a\u306e\u3067\u3001\u3053\u306e\u8981\u7d20\u306b text-align:center\u3092\u5f53\u3066\u3066\u3082\u4e2d\u592e\u306b\u5bc4\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>span\u30bf\u30b0\u3092\u56f2\u3080\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306e\u89aa\u8981\u7d20\u306b\u5bfe\u3057\u3066 text-align:center\u3092\u5f53\u3066\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p class=\"codepen\" data-height=\"265\" data-theme-id=\"dark\" data-default-tab=\"html,result\" data-user=\"jun_pinoy\" data-slug-hash=\"oNjwrQX\" style=\"height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\" data-pen-title=\"span\u30bf\u30b0\u306e\u4e2d\u592e\u5bc4\u305b\"><span>See the Pen <a href=\"https:\/\/codepen.io\/jun_pinoy\/pen\/oNjwrQX\"><br \/>\nspan\u30bf\u30b0\u306e\u4e2d\u592e\u5bc4\u305b<\/a> by \u30aa\u30ce\uff20\u30d5\u30a3\u30ea\u30d4\u30f3(\u305d\u308d\u305d\u308d\u5e30\u308a\u305f\u3044) (<a href=\"https:\/\/codepen.io\/jun_pinoy\">@jun_pinoy<\/a>)<br \/>\non <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span><\/p>\n<p><script async src=\"https:\/\/static.codepen.io\/assets\/embed\/ei.js\"><\/script><\/p>\n<h3 id=\"i-3\"><span id=\"3_img\">3. \u753b\u50cf\uff08img\u30bf\u30b0\uff09\u306e\u4e2d\u592e\u5bc4\u305b<\/span><\/h3>\n<p>img\u30bf\u30b0\u3082span\u30bf\u30b0\u540c\u69d8\u306b\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u306a\u306e\u3067\u3001\u89aa\u8981\u7d20\u306b\u5bfe\u3057\u3066 text-align:center\u3092\u5f53\u3066\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"memo \">\n<div class=\"memo_ttl dfont\"> \u3053\u3053\u304c\u5927\u4e8b\uff01<\/div>\n<p>\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u3092\u4e2d\u592e\u306b\u5bc4\u305b\u305f\u3044\u5834\u5408\u306f\u3001<strong>\u89aa\u8981\u7d20\u306b\u5bfe\u3057\u3066 text-align:center\u3092\u5f53\u3066\u308b<\/strong><\/div>\n<h3 id=\"i-4\"><span id=\"4\">4. \u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306e\u4e2d\u592e\u5bc4\u305b<\/span><\/h3>\n<p>\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u3092\u4e2d\u592e\u306b\u5bc4\u305b\u308b\u306b\u306f\u3001\u305d\u306e\u8981\u7d20\u306b\u5bfe\u3057\u3066 <span class=\"keiko_yellow\"><strong>margin:0 auto<\/strong><\/span> \u3092\u5f53\u3066\u3066\u3042\u3052\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<p class=\"codepen\" data-height=\"265\" data-theme-id=\"dark\" data-default-tab=\"css,result\" data-user=\"jun_pinoy\" data-slug-hash=\"LYpLKaV\" style=\"height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\" data-pen-title=\"\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306e\u4e2d\u592e\u5bc4\u305b\"><span>See the Pen <a href=\"https:\/\/codepen.io\/jun_pinoy\/pen\/LYpLKaV\"><br \/>\n\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306e\u4e2d\u592e\u5bc4\u305b<\/a> by \u30aa\u30ce\uff20\u30d5\u30a3\u30ea\u30d4\u30f3(\u305d\u308d\u305d\u308d\u5e30\u308a\u305f\u3044) (<a href=\"https:\/\/codepen.io\/jun_pinoy\">@jun_pinoy<\/a>)<br \/>\non <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span><\/p>\n<p><script async src=\"https:\/\/static.codepen.io\/assets\/embed\/ei.js\"><\/script><br \/>\n\u305f\u3060\u3057\u3001<strong>\u3053\u308c\u306f\u89aa\u8981\u7d20\u306e\u4e2d\u592e\u306b\u79fb\u52d5\u3055\u305b\u308b\u65b9\u6cd5\u3067\u3001\u753b\u9762\u306e\u771f\u3093\u4e2d\u3067\u306f\u306a\u3044\u306e\u3067\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><\/p>\n<p>\u307e\u305f\u3001\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306b\u5bfe\u3057\u3066text-align:center \u3092\u5f53\u3066\u3066\u3082\u4e2d\u592e\u5bc4\u308a\u306b\u306f\u306a\u3089\u306a\u3044\u306e\u3067\u6c17\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002\u7279\u306bHTML\u30fbCSS\u306e\u5b66\u7fd2\u3092\u59cb\u3081\u305f\u3070\u304b\u308a\u306e\u4eba\u306f\u3053\u306e\u30df\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<br \/>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-4166043434922569\" data-ad-slot=\"7750996733\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<h2 class=\"hh hh5 pastel-bc\" id=\"i-5\"><span id=\"i-2\">\u4e0a\u4e0b\u306e\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/span><\/h2>\n<h3 id=\"i-6\"><span id=\"1\">1. \u6587\u5b57\u3092\u4e0a\u4e0b\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5\uff08\u6587\u5b57\u5217\u304c\uff11\u884c\u306e\u5834\u5408\uff09<\/span><\/h3>\n<p>\u89aa\u8981\u7d20\u306e\u4e0a\u4e0b\u4e2d\u592e\u306b\u6587\u5b57\u3092\u6301\u3063\u3066\u6765\u305f\u3044\u5834\u5408\u306f\u3001<span class=\"keiko_yellow\"><strong>line-height: \u89aa\u8981\u7d20\u306e\u9ad8\u3055<\/strong><\/span> \u3092\u5f53\u3066\u3066\u3042\u3052\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<p class=\"codepen\" data-height=\"265\" data-theme-id=\"dark\" data-default-tab=\"css,result\" data-user=\"jun_pinoy\" data-slug-hash=\"wvKeLVp\" style=\"height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\" data-pen-title=\"\u89aa\u8981\u7d20\u306e\u4e0a\u4e0b\u4e2d\u592e\u306b\u6587\u5b57\u3092\u6301\u3063\u3066\u304f\u308b\"><span>See the Pen <a href=\"https:\/\/codepen.io\/jun_pinoy\/pen\/wvKeLVp\"><br \/>\n\u89aa\u8981\u7d20\u306e\u4e0a\u4e0b\u4e2d\u592e\u306b\u6587\u5b57\u3092\u6301\u3063\u3066\u304f\u308b<\/a> by \u30aa\u30ce\uff20\u30d5\u30a3\u30ea\u30d4\u30f3(\u305d\u308d\u305d\u308d\u5e30\u308a\u305f\u3044) (<a href=\"https:\/\/codepen.io\/jun_pinoy\">@jun_pinoy<\/a>)<br \/>\non <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span><\/p>\n<p><script async src=\"https:\/\/static.codepen.io\/assets\/embed\/ei.js\"><\/script><br \/>\n\u305f\u3060\u3057\u3001\u3053\u306e\u65b9\u6cd5\u306f\u6587\u7ae0\u304c\uff12\u884c\u4ee5\u4e0a\u306b\u306a\u308b\u5834\u5408\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<\/p>\n<p>\u8a66\u3057\u306b\u3001\uff12\u884c\u306b\u3057\u3066\u307f\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"codepen\" data-height=\"265\" data-theme-id=\"dark\" data-default-tab=\"css,result\" data-user=\"jun_pinoy\" data-slug-hash=\"XWmgvWL\" style=\"height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\" data-pen-title=\"\u89aa\u8981\u7d20\u306e\u4e0a\u4e0b\u4e2d\u592e\u306b\u6587\u5b57\u3092\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5\u3067line-height\u304c\u4f7f\u3048\u306a\u3044\u30b1\u30fc\u30b9\"><span>See the Pen <a href=\"https:\/\/codepen.io\/jun_pinoy\/pen\/XWmgvWL\"><br \/>\n\u89aa\u8981\u7d20\u306e\u4e0a\u4e0b\u4e2d\u592e\u306b\u6587\u5b57\u3092\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5\u3067line-height\u304c\u4f7f\u3048\u306a\u3044\u30b1\u30fc\u30b9<\/a> by \u30aa\u30ce\uff20\u30d5\u30a3\u30ea\u30d4\u30f3(\u305d\u308d\u305d\u308d\u5e30\u308a\u305f\u3044) (<a href=\"https:\/\/codepen.io\/jun_pinoy\">@jun_pinoy<\/a>)<br \/>\non <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span><\/p>\n<p><script async src=\"https:\/\/static.codepen.io\/assets\/embed\/ei.js\"><\/script><\/p>\n<p>\u898b\u3066\u306e\u901a\u308a\u3001\u6587\u5b57\u304c\u30dc\u30c3\u30af\u30b9\u304b\u3089\u98db\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n<p>line-height\u3064\u307e\u308a\u884c\u306e\u9ad8\u3055\u3092\u30dc\u30c3\u30af\u30b9\u306e\u9ad8\u3055\u3067\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u884c\u6570\u304c\u5897\u3048\u3066\u3057\u307e\u3046\u3068\u3001\u305d\u306e\u884c\u306e\u9ad8\u3055\u3092\u8d85\u3048\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u306a\u306e\u3067\u3001\u3000\u884c\u6570\u304c\uff12\u884c\u4ee5\u4e0a\u306b\u306a\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<h3 id=\"i-7\"><span id=\"2\">2. \u8981\u7d20\u3092\u4e0a\u4e0b\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u65b9\u6cd5<\/span><\/h3>\n<p>line-height\u3092\u4f7f\u308f\u305a\u306b\u3001\u8981\u7d20\u3092\u4e0a\u4e0b\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u306b\u306f <span class=\"keiko_yellow\"><strong>position: absolute <\/strong><\/span>\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u3061\u3087\u3063\u3068\u3084\u3084\u3053\u3057\u3044\u3067\u3059\u304c\u3001\u624b\u9806\u3092\u66f8\u304f\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sng-box box28\">\n<div class=\"box-title\">position: absolute\u3092\u4f7f\u3063\u305f\u4e0a\u4e0b\u4e2d\u592e\u306e\u3084\u308a\u65b9<\/div>\n<div class=\"box-content\">\n<div class=\"ol-circle li-accentbdr acc-bc-before\">\n<ol>\n<li>\u89aa\u8981\u7d20\u306b <span class=\"keiko_red\"><strong>position: relative;<\/strong><\/span>&nbsp; \u3092\u5f53\u3066\u308b<\/li>\n<li>\u4e2d\u592e\u306b\u5bc4\u305b\u305f\u3044\u8981\u7d20\u306b<br \/>\n<span class=\"keiko_red\"><strong>position: absolute; <\/strong><\/span><br \/>\n<span class=\"keiko_red\"><strong>top: 50%; <\/strong><\/span><br \/>\n<span class=\"keiko_red\"><strong>-webkit-transform : translateY(-50%); <\/strong><\/span><br \/>\n<span class=\"keiko_red\"><strong>transform: translateY(-50%);<\/strong><\/span><br \/>\n\u3092\u5f53\u3066\u308b<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<p>\u89aa\u8981\u7d20\u306b position:relative \u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u89aa\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u8d77\u70b9\u3068\u3057\u3066\u3001\u79fb\u52d5\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>top:50%\u3092\u79fb\u52d5\u3055\u305b\u305f\u3044\u8981\u7d20\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u4e0a\u4e0b\u4e2d\u592e\u306b\u79fb\u52d5\u3055\u305b\u308b\u308f\u3051\u3067\u3059\u304c\u3001\u3053\u308c\u3060\u3051\u3060\u3068\u4e0b\u306e\u30a4\u30e9\u30b9\u30c8\u306e\u3088\u3046\u306b\u9ad8\u305550%\u306e\u4f4d\u7f6e\u3092\u8d77\u70b9\u3068\u3057\u3066\u914d\u7f6e\u3055\u308c\u3066\u3057\u307e\u3046\u305f\u3081\u3001<strong>transform: translateY(-50%)<\/strong> \u3067\u4f4d\u7f6e\u3092\u8abf\u6574\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-1024x682.jpg\" alt=\"\" width=\"880\" height=\"586\" class=\"alignnone wp-image-3027 size-large\" srcset=\"https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-1024x682.jpg 1024w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-300x200.jpg 300w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-768x512.jpg 768w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-940x626.jpg 940w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50.jpg 1280w\" sizes=\"(max-width: 880px) 100vw, 880px\"><\/p>\n<p>\u3053\u306e\u3084\u308a\u65b9\u306f\u3088\u304f\u4f7f\u3046\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 class=\"hh hh5 pastel-bc\" id=\"i-8\"><span id=\"i-3\">\u4e0a\u4e0b\u5de6\u53f3\u4e2d\u592e\u5bc4\u305b\u306e\u3084\u308a\u65b9<\/span><\/h2>\n<h3 id=\"i-9\"><span id=\"1_position\">1. position\u3092\u4f7f\u3063\u3066\u771f\u3093\u4e2d\u5bc4\u305b\u3059\u308b\u65b9\u6cd5<\/span><\/h3>\n<p>\u4e0a\u4e0b\u4e2d\u592e\u306e\u6642\u3068\u540c\u3058\u3088\u3046\u306bposition\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u4e0a\u4e0b\u5de6\u53f3\u4e2d\u592e\u306b\u6301\u3063\u3066\u304f\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u624b\u9806\u3092\u66f8\u304f\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sng-box box28\">\n<div class=\"box-title\">position: absolute\u4e0a\u4e0b\u5de6\u53f3\u4e2d\u592e\u306e\u3084\u308a\u65b9<\/div>\n<div class=\"box-content\">\n<div class=\"ol-circle li-accentbdr acc-bc-before\">\n<ol>\n<li>\u89aa\u8981\u7d20\u306b <span class=\"keiko_red\"><strong>position: relative;<\/strong><\/span>&nbsp; \u3092\u5f53\u3066\u308b<\/li>\n<li>\u4e2d\u592e\u306b\u5bc4\u305b\u305f\u3044\u8981\u7d20\u306b<br \/>\n<span class=\"keiko_red\"><strong>position: absolute;<\/strong><\/span><br \/>\n<span class=\"keiko_red\"><strong>top: 50%;<br \/>\n<\/strong><strong>left: 50%;<br \/>\n-webkit-transform : translate(-50%, -50%);<\/strong><\/span><br \/>\n<span class=\"keiko_red\"><strong>transform: translate(-50%, -50%);<\/strong><\/span>&nbsp; &nbsp;\u3092\u5f53\u3066\u308b<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<p>top:50%\u3068left:50%\u3060\u3051\u6307\u5b9a\u3057\u305f\u5834\u5408\u306f\u3001\u4e0b\u306e\u30a4\u30e9\u30b9\u30c8\u306e\u3088\u3046\u306b\u89aa\u8981\u7d20\u306e\u3069\u771f\u3093\u4e2d\u3092\u8d77\u70b9\u3068\u3057\u3066\u5b50\u8981\u7d20\u304c\u914d\u7f6e\u3055\u308c\u308b\u305f\u3081\u3001<strong>transform: translate(-50%, -50%)<\/strong>\u3067\u4e2d\u592e\u306b\u6765\u308b\u3088\u3046\u306b\u8abf\u6574\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50-1024x682.jpg\" alt=\"\" width=\"880\" height=\"586\" class=\"wp-image-3028 size-large aligncenter\" srcset=\"https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50-1024x682.jpg 1024w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50-300x200.jpg 300w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50-768x512.jpg 768w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50-940x626.jpg 940w, https:\/\/naoya-ono.com\/blog\/wp-content\/uploads\/2020\/04\/top-50-left-50.jpg 1280w\" sizes=\"(max-width: 880px) 100vw, 880px\"><\/p>\n<p>\u3053\u308c\u3082\u3088\u304f\u4f7f\u3046\u3084\u308a\u65b9\u306a\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u4ed6\u306b\u3082\u4e2d\u592e\u5bc4\u305b\u306e\u65b9\u6cd5\u306f\u307e\u3060\u3042\u308a\u307e\u3059\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u3053\u308c\u3050\u3089\u3044\u7406\u89e3\u3057\u3066\u304a\u3051\u3070\u3001\u56f0\u3089\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<div id=\"rinkerid1192\" class=\"yyi-rinker-contents  yyi-rinker-postid-1192 yyi-rinker-img-m yyi-rinker-catid-4 yyi-rinker-catid-3 \">\n<div class=\"yyi-rinker-box\">\n<div class=\"yyi-rinker-image\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.amazon.co.jp\/dp\/4797398892?tag=naoya-ono-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow\" class=\"yyi-rinker-tracking\" data-click-tracking=\"amazon_img 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\" data-vars-click-id=\"amazon_img 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51IxleJF-FL._SL160_.jpg\" width=\"125\" height=\"160\" class=\"yyi-rinker-main-img\" style=\"border: none;\"><\/a>\t\t\t\t\t<\/div>\n<div class=\"yyi-rinker-info\">\n<div class=\"yyi-rinker-title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.amazon.co.jp\/dp\/4797398892?tag=naoya-ono-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow\" class=\"yyi-rinker-tracking\" data-click-tracking=\"amazon_title 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\" data-vars-amp-click-id=\"amazon_title 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\">1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7<\/a>\t\t\t\t\t\t\t<\/div>\n<div class=\"yyi-rinker-detail\">\n<div class=\"credit-box\">created by&nbsp;<a href=\"https:\/\/oyakosodate.com\/rinker\/\" rel=\"nofollow noopener\" target=\"_blank\">Rinker<\/a><\/div>\n<div class=\"brand\">SB\u30af\u30ea\u30a8\u30a4\u30c6\u30a3\u30d6<\/div>\n<div class=\"price-box\">\n\t\t\t\t\t\t\t<\/div>\n<\/p><\/div>\n<ul class=\"yyi-rinker-links\">\n<li class=\"amazonkindlelink\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.amazon.co.jp\/gp\/product\/B07PS1ZJN6\/ref=as_li_qf_asin_il_tl?ie=UTF8&amp;tag=naoya-ono-22&amp;creative=1211&amp;linkCode=as2&amp;creativeASIN=B07PS1ZJN6&amp;linkId=48b4ef0d692381954841e2c51967aecf\" rel=\"nofollow\" class=\"yyi-rinker-link yyi-rinker-tracking\" data-click-tracking=\"amazon_kindle 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\" data-vars-amp-click-id=\"amazon_kindle 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\">Kindle<\/a>\t\t\t\t\t<\/li>\n<li class=\"amazonlink\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.amazon.co.jp\/dp\/4797398892?tag=naoya-ono-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow\" class=\"yyi-rinker-link yyi-rinker-tracking\" data-click-tracking=\"amazon 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\" data-vars-amp-click-id=\"amazon 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\">Amazon<\/a>\t\t\t\t\t<\/li>\n<li class=\"rakutenlink\">\n\t\t\t\t\t\t<a href=\"https:\/\/hb.afl.rakuten.co.jp\/hgc\/16781883.64066d33.16781884.4f333982\/Rinker_o_20191129124437?pc=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2F1%25E5%2586%258A%25E3%2581%25A7%25E3%2581%2599%25E3%2581%25B9%25E3%2581%25A6%25E8%25BA%25AB%25E3%2581%25AB%25E3%2581%25A4%25E3%2581%258FHTML%2B%2526%2BCSS%25E3%2581%25A8Web%25E3%2583%2587%25E3%2582%25B6%25E3%2582%25A4%25E3%2583%25B3%25E5%2585%25A5%25E9%2596%2580%25E8%25AC%259B%25E5%25BA%25A7%2F%3Ff%3D1%26grp%3Dproduct&amp;m=https%3A%2F%2Fsearch.rakuten.co.jp%2Fsearch%2Fmall%2F1%25E5%2586%258A%25E3%2581%25A7%25E3%2581%2599%25E3%2581%25B9%25E3%2581%25A6%25E8%25BA%25AB%25E3%2581%25AB%25E3%2581%25A4%25E3%2581%258FHTML%2B%2526%2BCSS%25E3%2581%25A8Web%25E3%2583%2587%25E3%2582%25B6%25E3%2582%25A4%25E3%2583%25B3%25E5%2585%25A5%25E9%2596%2580%25E8%25AC%259B%25E5%25BA%25A7%2F%3Ff%3D1%26grp%3Dproduct\" rel=\"nofollow\" class=\"yyi-rinker-link yyi-rinker-tracking\" data-click-tracking=\"rakuten 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; 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CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\" data-vars-amp-click-id=\"free_2 1192 1\u518a\u3067\u3059\u3079\u3066\u8eab\u306b\u3064\u304fHTML &amp; CSS\u3068Web\u30c7\u30b6\u30a4\u30f3\u5165\u9580\u8b1b\u5ea7\">\u7d00\u4f0a\u570b\u5c4b\u66f8\u5e97<\/a>\t\t\t\t\t<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CSS\u3092\u4f7f\u3063\u3066\u8981\u7d20\u3092\u4e2d\u592e\u5bc4\u305b\u308b\u3053\u3068\u3063\u3066\u3088\u304f\u3042\u308a\u307e\u3059\u3088\u306d\u3002 \u3067\u3082\u3001\u4f55\u5ea6\u4f7f\u3063\u3066\u3066\u3082\u300c\u3042\u308c\uff1f\u3069\u30fc\u3084\u3063\u3066\u66f8\u304f\u3093\u3060\u3063\u3051\uff1f\u300d\u3063\u3066\u5fd8\u308c\u308b\u3053\u3068\u3042\u308a\u307e\u305b\u3093\u304b\uff1f \u305d\u3053\u3067\u3001\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u8981\u7d20\u3092\u4e2d\u592e\u306b\u5bc4\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u30b5\u30af\u30c3\u3068\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":3029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,3],"tags":[],"_links":{"self":[{"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/posts\/3017"}],"collection":[{"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/comments?post=3017"}],"version-history":[{"count":11,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/posts\/3017\/revisions"}],"predecessor-version":[{"id":3031,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/posts\/3017\/revisions\/3031"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/media\/3029"}],"wp:attachment":[{"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/media?parent=3017"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/categories?post=3017"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/naoya-ono.com\/blog\/wp-json\/wp\/v2\/tags?post=3017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}