{"id":218,"date":"2025-06-11T09:57:18","date_gmt":"2025-06-11T00:57:18","guid":{"rendered":"https:\/\/generalasahi.co.jp\/cd\/ec\/column\/218"},"modified":"2025-07-18T16:44:47","modified_gmt":"2025-07-18T07:44:47","slug":"ec-responsive-design","status":"publish","type":"column","link":"https:\/\/generalasahi.co.jp\/cd\/ec\/column\/ec-responsive-design\/","title":{"rendered":"EC\u30b5\u30a4\u30c8\u306e\u6210\u529f\u30dd\u30a4\u30f3\u30c8\uff01\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u57fa\u790e\u77e5\u8b58\u3068\u624b\u9806"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"495\" src=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img01.jpg\" alt=\"\" class=\"wp-image-251\" srcset=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img01.jpg 800w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img01-300x186.jpg 300w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img01-768x475.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" 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<li>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\uff1a\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u5143\u306b\u7570\u306a\u308bCSS\u30b9\u30bf\u30a4\u30eb\u3092\u9069\u7528\u3059\u308b\u4ed5\u7d44\u307f\u3002<\/li>\n<\/ol>\n        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class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"495\" src=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img02.jpg\" alt=\"\" class=\"wp-image-252\" srcset=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img02.jpg 800w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img02-300x186.jpg 300w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img02-768x475.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" 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       \n        \n<h2>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n<p>\u4e00\u65b9\u3067\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u305d\u306e\u4ee3\u8868\u7684\u306a\u3082\u306e\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n<h3>\u521d\u671f\u8a2d\u5b9a\u306e\u8907\u96d1\u3055<\/h3>\n<p>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u306e\u5c0e\u5165\u306b\u306f\u3001\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u306e\u8a2d\u5b9a\u3084\u5404\u30c7\u30d0\u30a4\u30b9\u306b\u6700\u9069\u5316\u3055\u308c\u305fCSS\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u306b\u6163\u308c\u308b\u307e\u3067\u5c11\u3057\u6642\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n<h3>\u30c7\u30b6\u30a4\u30f3\u306b\u5236\u9650\u304c\u51fa\u308b<\/h3>\n<p>\u5168\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u4e00\u8cab\u3057\u305f\u30c7\u30b6\u30a4\u30f3\u3092\u4fdd\u3064\u305f\u3081\u306b\u306f\u3001\u4e00\u90e8\u306e\u30c7\u30b6\u30a4\u30f3\u304c\u5236\u7d04\u3092\u53d7\u3051\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u3001\u753b\u9762\u5e45\u306b\u3088\u308b\u30c7\u30b6\u30a4\u30f3\u306e\u5fae\u8abf\u6574\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n<h3>\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u306e\u554f\u984c<\/h3>\n<p>\u591a\u304f\u306e\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3084\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u306b\u3088\u308a\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u901f\u5ea6\u304c\u9045\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u753b\u50cf\u306e\u6700\u9069\u5316\u3084\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u5229\u7528\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u306e\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"495\" src=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img03.jpg\" alt=\"\" class=\"wp-image-253\" srcset=\"https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img03.jpg 800w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img03-300x186.jpg 300w, https:\/\/generalasahi.co.jp\/cd\/ec\/wp\/wp-content\/uploads\/2025\/06\/column_005_img03-768x475.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306e\u57fa\u672c\u7684\u306a\u624b\u9806\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u306e\u8a2d\u5b9a<\/h3>\n<p>HTML\u306e<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\u30bf\u30b0\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u3067\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u5e45\u306b\u5fdc\u3058\u305f\u9069\u5207\u306a\u8868\u793a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<h3>\u5404\u30c7\u30d0\u30a4\u30b9\u7528\u306bCSS\u306b\u3066\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306e\u5229\u7528<\/h3>\n<p>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u306b\u5fdc\u3058\u3066\u7570\u306a\u308bCSS\u30b9\u30bf\u30a4\u30eb\u3092\u9069\u7528\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n<h4>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3068\u306f<\/h4>\n<p>\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306f\u3001\u6761\u4ef6\u306b\u5fdc\u3058\u3066\u7570\u306a\u308b\u30b9\u30bf\u30a4\u30eb\u3092\u9069\u7528\u3059\u308b\u305f\u3081\u306eCSS\u306e\u6587\u6cd5\u3067\u3059\u3002\u300cmax-width: 480px\u300d\u3068\u3044\u3046\u6761\u4ef6\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u305d\u306e\u5e45\u307e\u3067\u306e\u753b\u9762\u30b5\u30a4\u30ba\u306e\u307f\u306b\u7279\u5b9a\u306e\u30b9\u30bf\u30a4\u30eb\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n<h4>\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u3068\u306f<\/h4>\n<p>\u30d6\u30ec\u30a4\u30af\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306b\u3088\u3063\u3066\u5909\u3048\u308b\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306e\u3053\u3068\u3067\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\uff08320px-480px\uff09\u3001\u30bf\u30d6\u30ec\u30c3\u30c8\uff08768px-1024px\uff09\u3001\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\uff081024px\u4ee5\u4e0a\uff09\u3068\u3044\u3063\u305f\u5e45\u306b\u5fdc\u3058\u3066\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u5207\u308a\u66ff\u3048\u307e\u3059\u3002<\/p>\n\n<h3>\u5404\u30c7\u30d0\u30a4\u30b9\u5225\u306bCSS\u30d5\u30a1\u30a4\u30eb\u306e\u8a2d\u5b9a<\/h3>\n<p>\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u306b\u5fdc\u3058\u3066\u3001\u5c02\u7528\u306eCSS\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u30b9\u30bf\u30a4\u30eb\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:1.5rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#90A4AE;--cbp-line-number-width:calc(1 * 0.6 * 1.5rem);line-height:1.625rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" style=\"color:#90A4AE;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>&lt;link rel=&#8221;stylesheet&#8221; media=&#8221;(max-width: 480px)&#8221; href=&#8221;mobile.css&#8221;>\n&lt;link rel=&#8221;stylesheet&#8221; media=&#8221;(min-width: 481px) and (max-width: 1024px)&#8221; href=&#8221;tablet.css&#8221;>\n&lt;link rel=&#8221;stylesheet&#8221; media=&#8221;(min-width: 1025px)&#8221; href=&#8221;desktop.css&#8221;><\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-lighter\" style=\"background-color: #FAFAFA\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #39ADB5\">&lt;<\/span><span style=\"color: #E53935\">link<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">rel<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">stylesheet<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">media<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">(max-width: 480px)<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">href<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">mobile.css<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #39ADB5\">&lt;<\/span><span style=\"color: #E53935\">link<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">rel<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">stylesheet<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">media<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">(min-width: 481px) and (max-width: 1024px)<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">href<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">tablet.css<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #39ADB5\">&lt;<\/span><span style=\"color: #E53935\">link<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">rel<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">stylesheet<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">media<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">(min-width: 1025px)<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\"> <\/span><span style=\"color: #9C3EDA\">href<\/span><span style=\"color: #39ADB5\">=<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #91B859\">desktop.css<\/span><span style=\"color: #39ADB5\">&quot;<\/span><span style=\"color: #39ADB5\">&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u5411\u3051\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u30b9\u30bf\u30a4\u30eb\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n        \n        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