{"id":12344,"date":"2026-02-02T17:12:07","date_gmt":"2026-02-02T17:12:07","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=12344"},"modified":"2026-02-20T07:20:39","modified_gmt":"2026-02-20T07:20:39","slug":"css_darkmode","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/css_darkmode\/","title":{"rendered":"\u3010CSS\u3011\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u5bfe\u5fdc\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5\uff5c\u8272\u5f69\u8a2d\u8a08\u304b\u3089\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u307e\u3067\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u6700\u8fd1\u3001\u3044\u308d\u3093\u306aWeb\u30b5\u30a4\u30c8\u3067\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3092\u898b\u304b\u3051\u308b\u3093\u3067\u3059\u3051\u3069\u3001\u81ea\u5206\u306e\u30b5\u30a4\u30c8\u306b\u3082\u5b9f\u88c5\u3057\u305f\u3044\u3067\u3059\uff01\u3069\u3046\u3084\u3063\u3066\u4f5c\u308c\u3070\u3044\u3044\u3093\u3067\u3059\u304b\uff1f<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3088\u30fc\u304f\u805e\u304f\u3093\u3060\u305e\uff01\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306f\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u6a5f\u80fd\u3058\u3083\u3002\u4eca\u65e5\u306fCSS\u3092\u4f7f\u3063\u305f\u5b9f\u88c5\u65b9\u6cd5\u304b\u3089\u8272\u5f69\u8a2d\u8a08\u307e\u3067\u3001\u8a73\u3057\u304f\u89e3\u8aac\u3059\u308b\u305e\u3044\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.48.08.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\u3088\u308d\u3057\u304f\u304a\u9858\u3044\u3044\u305f\u3057\u307e\u3059\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p>\u8fd1\u5e74\u3001\u591a\u304f\u306eWeb\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\uff08\u30c0\u30fc\u30af\u30c6\u30fc\u30de\uff09\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002Apple\u306eiOS\u3001macOS\u3001Google\u306eAndroid\u3001Windows\u306a\u3069\u306eOS\u30ec\u30d9\u30eb\u3067\u3082\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u304c\u6a19\u6e96\u6a5f\u80fd\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u9593\u3067\u6025\u901f\u306b\u666e\u53ca\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">CSS\u3092\u4f7f\u3063\u305f\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u5b9f\u88c5\u65b9\u6cd5<\/span><\/strong>\u306b\u3064\u3044\u3066\u3001\u57fa\u672c\u7684\u306aprefers-color-scheme\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u306e\u4f7f\u3044\u65b9\u304b\u3089\u3001CSS\u5909\u6570\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u8272\u5f69\u7ba1\u7406\u3001JavaScript\u306b\u3088\u308b\u624b\u52d5\u5207\u308a\u66ff\u3048\u6a5f\u80fd\u306e\u5b9f\u88c5\u3001\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3078\u306e\u914d\u616e\u307e\u3067\u3001\u5b9f\u88c5\u4f8b\u3092\u4ea4\u3048\u306a\u304c\u3089\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_announce\">\u300c\u5b66\u7fd2\u2192\u6848\u4ef6\u7372\u5f97\u300d\u306b\u3064\u306a\u3052\u305f\u53d7\u8b1b\u751f\u306e\u30ea\u30a2\u30eb\u306a\u4f53\u9a13\u8ac7\u3082\u516c\u958b\u4e2d\uff01<br>\u50cd\u304d\u65b9\u3092\u5909\u3048\u305f\u3044\u65b9\u306b\u3082\u97ff\u304f\u30b9\u30c8\u30fc\u30ea\u30fc\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_info\"><strong><strong>\u5409\u6c60\u3055\u3093<\/strong><\/strong><br>Web\u5236\u4f5c\u3092\u4f53\u7cfb\u7684\u306b\u5b66\u3073\u305f\u3044\u3068\u8003\u3048\u3001WithCode\u306b\u5165\u4f1a\u3055\u308c\u307e\u3057\u305f\u3002\u5352\u696d\u5f8c\u306f\u3001WithCode\u7d4c\u7531\u3067\u5b9f\u6848\u4ef6\u3092\u7d4c\u9a13\u3057\u305f\u307b\u304b\u3001\u3054\u81ea\u8eab\u3067\u3082\u6848\u4ef6\u3092\u7372\u5f97\u3002\u4eca\u5f8c\u306fWeb\u7cfb\u306e\u696d\u52d9\u306b\u643a\u308f\u308a\u305f\u3044\u3068\u3044\u3046\u601d\u3044\u304b\u3089\u8ee2\u8077\u6d3b\u52d5\u3092\u884c\u3044\u3001\u53d7\u8a17\u958b\u767a\u306e\u4f1a\u793e\u3078\u306e\u8ee2\u8077\u3092\u6210\u529f\u3055\u305b\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u8a73\u3057\u304f\u306f<a href=\"https:\/\/withcode.tech\/media\/interview_9\/\" title=\"\">\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-withcode-media wp-block-embed-withcode-media\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/withcode.tech\/media\/interview_9\/\n<\/div><\/figure>\n\n\n\n<p class=\"is-style-balloon_box2\"><strong>\u5409\u6c60\u3055\u3093\u306e\u4e3b\u306a\u5236\u4f5c\u5b9f\u7e3e\u306f\u3053\u3061\u3089<\/strong><\/p>\n\n\n<div class=\"swell-block-postLink\">\t\t\t<div class=\"p-blogCard -external\" data-type=\"type3\" data-onclick=\"clickLink\">\n\t\t\t\t<div class=\"p-blogCard__inner\">\n\t\t\t\t\t<span class=\"p-blogCard__caption\">\u4fe1\u7528\u529b\u5411\u4e0a\u3092\u76ee\u7684\u306b\u3057\u305f\u65b0\u898fHP\u5236\u4f5c<\/span>\n\t\t\t\t\t<div class=\"p-blogCard__thumb c-postThumb\"><figure class=\"c-postThumb__figure\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/08\/\u5409\u6c60\u3055\u3093.webp\" alt=\"\" class=\"c-postThumb__img u-obf-cover\" width=\"320\" height=\"180\"><\/figure><\/div>\t\t\t\t\t<div class=\"p-blogCard__body\">\n\t\t\t\t\t\t<a class=\"p-blogCard__title\" href=\"https:\/\/withcode.tech\/works\/yourdelt_hp\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u682a\u5f0f\u4f1a\u793eYOURDELT \u69d8<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n\n\n\n\n<h2 class=\"wp-block-heading\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3068\u306f\uff1f<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_55_27.jpg\" alt=\"\" class=\"wp-image-12433\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_55_27.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_55_27-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\uff08Dark Mode\uff09\u306f\u3001Web\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u80cc\u666f\u3092\u6697\u8272\u306b\u3057\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u660e\u8272\u3067\u8868\u793a\u3059\u308b\u8868\u793a\u30e2\u30fc\u30c9\u3067\u3059\u3002\u5f93\u6765\u306e\u767d\u80cc\u666f\u306b\u9ed2\u6587\u5b57\u3068\u3044\u3046\u300c\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u300d\u3068\u306f\u9006\u306e\u914d\u8272\u3092\u63a1\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u304c\u666e\u53ca\u3057\u305f\u80cc\u666f<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u304c\u6ce8\u76ee\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u80cc\u666f\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8981\u56e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_memo\"><strong>\u30fb\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u666e\u53ca<\/strong> : \u6709\u6a5fEL\uff08OLED\uff09\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3067\u306f\u3001\u6697\u3044\u753b\u9762\u306e\u65b9\u304c\u6d88\u8cbb\u96fb\u529b\u304c\u5c11\u306a\u3044<br><strong>\u30fb\u9577\u6642\u9593\u306e\u753b\u9762\u4f7f\u7528<\/strong> : \u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306e\u5897\u52a0\u306b\u3088\u308a\u3001\u753b\u9762\u3092\u898b\u308b\u6642\u9593\u304c\u5927\u5e45\u306b\u5897\u52a0<br>\u30fb<strong>\u773c\u7cbe\u75b2\u52b4\u3078\u306e\u914d\u616e<\/strong>: \u7279\u306b\u591c\u9593\u3084\u6697\u3044\u74b0\u5883\u3067\u306e\u4f7f\u7528\u6642\u306b\u3001\u773c\u306e\u8ca0\u62c5\u3092\u8efd\u6e1b<br>\u30fb<strong>\u7f8e\u7684\u4fa1\u5024<\/strong>: \u6d17\u7df4\u3055\u308c\u305f\u5370\u8c61\u3084\u30d7\u30ec\u30df\u30a2\u30e0\u611f\u306e\u6f14\u51fa<br>\u30fb<strong>OS\u30ec\u30d9\u30eb\u306e\u30b5\u30dd\u30fc\u30c8<\/strong>: iOS 13\u3001Android 10\u3001Windows 10\u4ee5\u964d\u3067\u6a19\u6e96\u6a5f\u80fd\u5316<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u7a2e\u985e<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306b\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u3066\u4ee5\u4e0b\u306e2\u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u81ea\u52d5\u691c\u51fa\u578b\uff08\u30b7\u30b9\u30c6\u30e0\u9023\u52d5\u578b\uff09<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u306eOS\u8a2d\u5b9a\u3092\u81ea\u52d5\u7684\u306b\u691c\u51fa<\/li>\n\n\n\n<li>`prefers-color-scheme`\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u30e6\u30fc\u30b6\u30fc\u306e\u8a2d\u5b9a\u306b\u5fdc\u3058\u3066\u81ea\u52d5\u7684\u306b\u5207\u308a\u66ff\u308f\u308b<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u624b\u52d5\u5207\u308a\u66ff\u3048\u578b<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Web\u30b5\u30a4\u30c8\u4e0a\u306e\u30c8\u30b0\u30eb\u30dc\u30bf\u30f3\u3067\u5207\u308a\u66ff\u3048<\/li>\n\n\n\n<li>JavaScript\u3068localStorage\u3067\u8a2d\u5b9a\u3092\u4fdd\u5b58<\/li>\n\n\n\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u7531\u306b\u9078\u629e\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<p>\u7406\u60f3\u7684\u306a\u306e\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u4e21\u65b9\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5b9f\u88c5<\/span><\/strong>\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a\u3092\u5c0a\u91cd\u3057\u3064\u3064\u3001\u30b5\u30a4\u30c8\u4e0a\u3067\u306e\u500b\u5225\u5909\u66f4\u3082\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u306a\u308b\u307b\u3069\u2026<br>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3063\u3066\u3001\u305f\u3060\u80cc\u666f\u3092\u9ed2\u304f\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u3044\u3093\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3046\u3080\u3002<br>\u672c\u8cea\u306f\u300c\u8868\u793a\u30e2\u30fc\u30c9\u306e\u5207\u308a\u66ff\u3048\u300d\u3067\u306f\u306a\u304f\u3001<strong>\u5149\u306e\u4f7f\u3044\u65b9\u306e\u8a2d\u8a08<\/strong>\u306a\u306e\u3058\u3083<\/strong>\uff01<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_57_35.jpg\" alt=\"\" class=\"wp-image-12435\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_57_35.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_57_35-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">1. \u773c\u7cbe\u75b2\u52b4\u306e\u8efd\u6e1b<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u773c\u306e\u75b2\u308c\u3092\u8efd\u6e1b\u3067\u304d\u308b\u3053\u3068<\/span><\/strong>\u3067\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u591c\u9593\u306e\u4f7f\u7528<\/strong>: \u6697\u3044\u74b0\u5883\u3067\u660e\u308b\u3044\u753b\u9762\u3092\u898b\u308b\u3068\u773c\u304c\u75b2\u308c\u3084\u3059\u3044<\/li>\n\n\n\n<li><strong>\u9577\u6642\u9593\u306e\u4f5c\u696d<\/strong>: \u30d6\u30eb\u30fc\u30e9\u30a4\u30c8\u306e\u5f71\u97ff\u3092\u4f4e\u6e1b<\/li>\n\n\n\n<li><strong>\u6697\u6240\u3067\u306e\u4f7f\u7528<\/strong>: \u5468\u56f2\u306e\u660e\u308b\u3055\u3068\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u7de9\u548c<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u3001<strong><span class=\"swl-marker mark_yellow\">\u3059\u3079\u3066\u306e\u4eba\u306b\u3068\u3063\u3066\u773c\u306b\u512a\u3057\u3044\u308f\u3051\u3067\u306f\u306a\u3044\u70b9\u306b<\/span><\/strong>\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u6697\u3044\u80cc\u666f\u306b\u660e\u308b\u3044\u30c6\u30ad\u30b9\u30c8\u306e\u65b9\u304c\u8aad\u307f\u306b\u304f\u3044\u3068\u611f\u3058\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u30d0\u30c3\u30c6\u30ea\u30fc\u5bff\u547d\u306e\u5ef6\u9577<\/h3>\n\n\n\n<p>\u6709\u6a5fEL\uff08OLED\uff09\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3092\u642d\u8f09\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306b\u3088\u3063\u3066\u30d0\u30c3\u30c6\u30ea\u30fc\u6d88\u8cbb\u3092\u524a\u6e1b<\/span><\/strong>\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>OLED\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u7279\u6027\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> \u9ed2\u8272\u306e\u30d4\u30af\u30bb\u30eb\u306f\u5b8c\u5168\u306b\u30aa\u30d5\u306b\u306a\u308b\uff08\u767a\u5149\u3057\u306a\u3044\uff09<\/li>\n\n\n\n<li> \u767d\u8272\u8868\u793a\u6642\u306b\u6bd4\u3079\u3066\u5927\u5e45\u306b\u6d88\u8cbb\u96fb\u529b\u304c\u5c11\u306a\u3044<\/li>\n\n\n\n<li> Google\u8abf\u67fb\u306b\u3088\u308c\u3070\u3001YouTube\u30a2\u30d7\u30ea\u3067\u6700\u592760%\u306e\u7701\u96fb\u529b\u52b9\u679c<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u6db2\u6676\uff08LCD\uff09\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3067\u306f\u3001\u30d0\u30c3\u30af\u30e9\u30a4\u30c8\u304c\u5e38\u6642\u70b9\u706f\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u306e\u52b9\u679c\u306f\u9650\u5b9a\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8996\u8a8d\u6027\u5411\u4e0a<\/h3>\n\n\n\n<p>\u753b\u50cf\u3084\u52d5\u753b\u306a\u3069\u306e\u30e1\u30c7\u30a3\u30a2\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u6697\u3044\u80cc\u666f\u306e\u65b9\u304c\u969b\u7acb\u3063\u3066\u898b\u3048\u308b<\/span><\/strong>\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5199\u771f\u30ae\u30e3\u30e9\u30ea\u30fc<\/strong> : \u5199\u771f\u304c\u6d6e\u304d\u7acb\u3064\u3088\u3046\u306b\u898b\u3048\u308b<\/li>\n\n\n\n<li><strong>\u52d5\u753b\u30d7\u30ec\u30a4\u30e4\u30fc<\/strong> : YouTube\u3084Netflix\u306a\u3069\u304c\u63a1\u7528<\/li>\n\n\n\n<li><strong>\u30c7\u30b6\u30a4\u30f3\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa<\/strong> : \u4f5c\u54c1\u3092\u5f15\u304d\u7acb\u3066\u308b\u80cc\u666f\u3068\u3057\u3066<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u30d6\u30e9\u30f3\u30c9\u30a4\u30e1\u30fc\u30b8\u306e\u5411\u4e0a<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u30e2\u30c0\u30f3\u3067\u6d17\u7df4\u3055\u308c\u305f\u5370\u8c61<\/span><\/strong>\u3092\u4e0e\u3048\u307e\u3059\u3002\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u696d\u754c\u30fb\u30b5\u30fc\u30d3\u30b9\u3067\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u4f01\u696d<\/strong> : \u5148\u9032\u7684\u306a\u30a4\u30e1\u30fc\u30b8<\/li>\n\n\n\n<li><strong>\u30af\u30ea\u30a8\u30a4\u30c6\u30a3\u30d6\u696d\u754c<\/strong> : \u30b9\u30bf\u30a4\u30ea\u30c3\u30b7\u30e5\u306a\u5370\u8c61<\/li>\n\n\n\n<li><strong>\u30b2\u30fc\u30df\u30f3\u30b0<\/strong> : \u6ca1\u5165\u611f\u306e\u5411\u4e0a<\/li>\n\n\n\n<li><strong>\u9ad8\u7d1a\u30d6\u30e9\u30f3\u30c9<\/strong> : \u30d7\u30ec\u30df\u30a2\u30e0\u611f\u306e\u6f14\u51fa<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u5411\u4e0a<\/h3>\n\n\n\n<p>\u8996\u899a\u306b\u95a2\u3059\u308b\u7279\u5b9a\u306e\u75c7\u72b6\u3092\u6301\u3064\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u3001\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306f<strong><span class=\"swl-marker mark_yellow\">\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306e\u5411\u4e0a<\/span><\/strong>\u306b\u3064\u306a\u304c\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5149\u904e\u654f\u75c7 <\/strong>: \u660e\u308b\u3044\u5149\u306b\u654f\u611f\u306a\u65b9<\/li>\n\n\n\n<li><strong>\u7247\u982d\u75db : <\/strong>\u7729\u3057\u3055\u304c\u5f15\u304d\u91d1\u3068\u306a\u308b\u65b9<\/li>\n\n\n\n<li><strong>\u767d\u5185\u969c\u8853\u5f8c :<\/strong> \u307e\u3076\u3057\u3055\u3092\u611f\u3058\u3084\u3059\u3044\u65b9<\/li>\n<\/ul>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u3059\u3079\u3066\u306e\u969c\u5bb3\u306b\u5bfe\u3057\u3066\u6709\u52b9\u3067\u306f\u306a\u3044\u305f\u3081\u3001<strong><span class=\"swl-marker mark_yellow\">\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u3068\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u4e21\u65b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/strong><\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u76ee\u306e\u75b2\u308c\u8efd\u6e1b\u3060\u3051\u3058\u3083\u306a\u304f\u3066\u3001<br>\u30d0\u30c3\u30c6\u30ea\u30fc\u3084\u6ca1\u5165\u611f\u306b\u3082\u95a2\u4fc2\u3059\u308b\u3093\u3067\u3059\u306d\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3046\u3080\u3002<br>\u30e1\u30ea\u30c3\u30c8\u306f\u300c\u898b\u305f\u76ee\u300d\u3088\u308a\u3082\u3001<strong>\u4f53\u9a13\u306e\u8cea<\/strong>\u306b\u73fe\u308c\u308b\u306e\u3058\u3083<\/strong>\uff01<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u4e3b\u306a\u5b9f\u88c5\u65b9\u6cd5<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_59_45.jpg\" alt=\"\" class=\"wp-image-12436\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_59_45.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-19_59_45-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">CSS\u5b9f\u88c5\u65b9\u6cd51\uff1aprefers-color-scheme\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea<\/h3>\n\n\n\n<p><code>prefers-color-scheme<\/code>\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306eOS\u30ec\u30d9\u30eb\u306e\u914d\u8272\u8a2d\u5b9a\u3092\u691c\u51fa\u3059\u308bCSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\uff082026\u5e742\u6708\u6642\u70b9\uff09\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chrome 76\u4ee5\u964d<\/li>\n\n\n\n<li>Firefox 67\u4ee5\u964d<\/li>\n\n\n\n<li>Safari 12.1\u4ee5\u964d<\/li>\n\n\n\n<li>Edge 79\u4ee5\u964d<\/li>\n<\/ul>\n\n\n\n<p>\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306f\u3059\u3079\u3066\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001<strong><span class=\"swl-marker mark_yellow\">\u5168\u4e16\u754c\u306e\u30d6\u30e9\u30a6\u30b6\u30b7\u30a7\u30a2\u306e95%\u4ee5\u4e0a<\/span><\/strong>\u304c\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u4f8b<\/h4>\n\n\n\n<p>\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u65b9\u6cd5\u306f\u3001\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u3068\u3057\u3001\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3092`prefers-color-scheme: dark`\u3067\u4e0a\u66f8\u304d\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"LEZXrwa\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/LEZXrwa\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h4 class=\"wp-block-heading\">\u3088\u308a\u8a73\u7d30\u306a\u5b9f\u88c5\u4f8b<\/h4>\n\n\n\n<p>\u5b9f\u969b\u306eWeb\u30b5\u30a4\u30c8\u3067\u306f\u3001\u80cc\u666f\u8272\u3068\u30c6\u30ad\u30b9\u30c8\u8272\u3060\u3051\u3067\u306a\u304f\u3001\u30ea\u30f3\u30af\u8272\u3001\u30dc\u30fc\u30c0\u30fc\u8272\u3001\u30b7\u30e3\u30c9\u30a6\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u8981\u7d20\u306e\u8272\u3092\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"dPXQjqY\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/dPXQjqY\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<p><strong>\u3053\u306e\u5b9f\u88c5\u306e\u30e1\u30ea\u30c3\u30c8<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CSS\u5909\u6570\u3092\u4e00\u7b87\u6240\u3067\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u3001\u5168\u4f53\u306e\u914d\u8272\u304c\u5207\u308a\u66ff\u308f\u308b<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u91cd\u8907\u304c\u6700\u5c0f\u9650<\/li>\n\n\n\n<li>\u30c8\u30e9\u30f3\u30b8\u30b7\u30e7\u30f3\u52b9\u679c\u3067\u6ed1\u3089\u304b\u306b\u5207\u308a\u66ff\u308f\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u753b\u50cf\u306e\u6271\u3044<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u3001\u753b\u50cf\u306e\u898b\u3048\u65b9\u306b\u3082\u914d\u616e\u304c\u5fc5\u8981\u3067\u3059\u3002\u7279\u306b\u30ed\u30b4\u3084\u30a2\u30a4\u30b3\u30f3\u306f\u3001\u80cc\u666f\u8272\u306b\u5fdc\u3058\u3066\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"yyJQxbd\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/yyJQxbd\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">CSS\u5b9f\u88c5\u65b9\u6cd52\uff1aCSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u7ba1\u7406<\/h3>\n\n\n\n<p>CSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001<strong><span class=\"swl-marker mark_yellow\">\u8272\u306e\u7ba1\u7406\u304c\u4e00\u5143\u5316\u3055\u308c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u304c\u5927\u5e45\u306b\u5411\u4e0a<\/span><\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30e1\u30ea\u30c3\u30c8\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e00\u7b87\u6240\u3067\u8272\u3092\u7ba1\u7406<\/strong> : \u5909\u6570\u5b9a\u7fa9\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u5168\u4f53\u306b\u53cd\u6620<\/li>\n\n\n\n<li><strong>\u547d\u540d\u306b\u3088\u308b\u610f\u5473\u4ed8\u3051<\/strong> : `&#8211;bg-primary`\u306e\u3088\u3046\u306a\u610f\u5473\u306e\u3042\u308b\u540d\u524d\u3067\u7ba1\u7406<\/li>\n\n\n\n<li><strong>JavaScript\u304b\u3089\u306e\u64cd\u4f5c\u304c\u5bb9\u6613<\/strong> : \u52d5\u7684\u306a\u8272\u5909\u66f4\u304c\u53ef\u80fd<\/li>\n\n\n\n<li><strong>\u8a08\u7b97\u304c\u53ef\u80fd<\/strong> : `calc()`\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u3089\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u30bb\u30de\u30f3\u30c6\u30a3\u30c3\u30af\u306a\u5909\u6570\u547d\u540d<\/strong><\/h4>\n\n\n\n<p>\u8272\u306e\u5024\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u5f79\u5272\u3084\u7528\u9014\u306b\u57fa\u3065\u3044\u305f\u547d\u540d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u60aa\u3044\u4f8b\uff1a\u8272\u306e\u5024\u3092\u305d\u306e\u307e\u307e\u547d\u540d *\/\n:root {\n--white: #ffffff;\n--black: #000000;\n--gray-200: #e0e0e0;\n--blue-500: #0066cc;\n}<\/code><\/pre><\/div>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u826f\u3044\u4f8b\uff1a\u5f79\u5272\u306b\u57fa\u3065\u3044\u305f\u547d\u540d *\/\n:root {\n\/* \u80cc\u666f\u8272 *\/\n--bg-primary: #ffffff;\n--bg-secondary: #f5f5f5;\n--bg-tertiary: #e8e8e8;\n\n\/* \u30c6\u30ad\u30b9\u30c8\u8272 *\/\n--text-primary: #333333;\n--text-secondary: #666666;\n--text-tertiary: #999999;\n--text-inverse: #ffffff;\n\n\/* \u30a2\u30af\u30bb\u30f3\u30c8\u30ab\u30e9\u30fc *\/\n--accent-primary: #0066cc;\n--accent-hover: #0052a3;\n--accent-active: #003d7a;\n\n\/* \u30b9\u30c6\u30fc\u30bf\u30b9\u8272 *\/\n--success: #28a745;\n--warning: #ffc107;\n--error: #dc3545;\n--info: #17a2b8;\n\n\/* UI\u8981\u7d20 *\/\n--border-color: #dddddd;\n--divider-color: #e0e0e0;\n--shadow-sm: rgba(0, 0, 0, 0.05);\n--shadow-md: rgba(0, 0, 0, 0.1);\n--shadow-lg: rgba(0, 0, 0, 0.15);\n}\n\n@media (prefers-color-scheme: dark) {\n:root {\n\/* \u80cc\u666f\u8272 *\/\n--bg-primary: #1a1a1a;\n--bg-secondary: #2d2d2d;\n--bg-tertiary: #3a3a3a;\n\n\/* \u30c6\u30ad\u30b9\u30c8\u8272 *\/\n--text-primary: #e0e0e0;\n--text-secondary: #b0b0b0;\n--text-tertiary: #808080;\n--text-inverse: #1a1a1a;\n\n\/* \u30a2\u30af\u30bb\u30f3\u30c8\u30ab\u30e9\u30fc *\/\n--accent-primary: #4d9fff;\n--accent-hover: #80b3ff;\n--accent-active: #b3d1ff;\n\n\/* \u30b9\u30c6\u30fc\u30bf\u30b9\u8272\uff08\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u5f69\u5ea6\u3092\u8abf\u6574\uff09 *\/\n--success: #4ade80;\n--warning: #fbbf24;\n--error: #f87171;\n--info: #38bdf8;\n\n\/* UI\u8981\u7d20 *\/\n--border-color: #404040;\n--divider-color: #333333;\n--shadow-sm: rgba(0, 0, 0, 0.3);\n--shadow-md: rgba(0, 0, 0, 0.5);\n--shadow-lg: rgba(0, 0, 0, 0.7);\n}\n}<\/code><\/pre><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u30b7\u30e3\u30c9\u30a6\u306e\u8abf\u6574<\/h4>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3\u3084\u30b7\u30e3\u30c9\u30a6\u3082\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>root {\n\/* \u30e9\u30a4\u30c8\u30e2\u30fc\u30c9 *\/\n--gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);\n--gradient-hero: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.1));\n}\n\n@media (prefers-color-scheme: dark) {\n:root {\n\/* \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u5c11\u3057\u660e\u308b\u3081\u306e\u30b0\u30e9\u30c7\u30fc\u30b7\u30e7\u30f3 *\/\n--gradient-primary: linear-gradient(135deg, #7c8ff5 0%, #8a5fb3 100%);\n--gradient-hero: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.5));\n}\n}\n\n.hero {\nbackground: var(--gradient-hero);\n}\n\n.button-primary {\nbackground: var(--gradient-primary);\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">CSS\u5b9f\u88c5\u65b9\u6cd53\uff1aJavaScript\u306b\u3088\u308b\u624b\u52d5\u5207\u308a\u66ff\u3048<\/h3>\n\n\n\n<p>\u306a\u305c\u624b\u52d5\u5207\u308a\u66ff\u3048\u304c\u5fc5\u8981\u304b\uff1f<\/p>\n\n\n\n<p><code>prefers-color-scheme<\/code>\u3060\u3051\u3067\u306f\u3001<span class=\"swl-marker mark_yellow\"><strong>\u30e6\u30fc\u30b6\u30fc\u304c\u30b5\u30a4\u30c8\u4e0a\u3067\u81ea\u7531\u306b\u30e2\u30fc\u30c9\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093<\/strong>\u3002<\/span>\u7406\u60f3\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306e\u305f\u3081\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u6a5f\u80fd\u304c\u5fc5\u8981\u3067\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30c8\u30b0\u30eb\u30dc\u30bf\u30f3\u3067\u306e\u5207\u308a\u66ff\u3048 : <\/strong>\u30b5\u30a4\u30c8\u5185\u3067\u5373\u5ea7\u306b\u5909\u66f4\u53ef\u80fd<\/li>\n\n\n\n<li><strong>\u8a2d\u5b9a\u306e\u4fdd\u5b58 :<\/strong> \u30da\u30fc\u30b8\u3092\u30ea\u30ed\u30fc\u30c9\u3057\u3066\u3082\u9078\u629e\u304c\u7dad\u6301\u3055\u308c\u308b<\/li>\n\n\n\n<li><strong>OS\u8a2d\u5b9a\u3068\u306e\u5354\u8abf :<\/strong> \u521d\u56de\u8a2a\u554f\u6642\u306fOS\u8a2d\u5b9a\u3092\u5c0a\u91cd\u3001\u305d\u306e\u5f8c\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u9078\u629e\u3092\u512a\u5148<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5b8c\u5168\u306a\u5b9f\u88c5\u4f8b<\/h4>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001OS\u8a2d\u5b9a\u306e\u691c\u51fa\u3001\u624b\u52d5\u5207\u308a\u66ff\u3048\u3001localStorage\u4fdd\u5b58\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"azZxeMx\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/azZxeMx\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u3088\u308a\u9ad8\u5ea6\u306a\u5b9f\u88c5\uff1a3\u3064\u306e\u30e2\u30fc\u30c9\u5bfe\u5fdc<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u30e9\u30a4\u30c8\u30fb\u30c0\u30fc\u30af\u30fb\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a\u306e3\u3064\u306e\u30e2\u30fc\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u5b9f\u88c5\u4f8b\uff1a<\/h4>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"JoKeePw\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/JoKeePw\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>CSS\u3060\u3051\u3067\u3067\u304d\u308b\u65b9\u6cd5\u304b\u3089\u3001JS\u3092\u4f7f\u3046\u65b9\u6cd5\u307e\u3067\u3042\u308b\u3093\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3046\u3080\u3002<br>\u91cd\u8981\u306a\u306e\u306f\u300c\u3069\u3046\u5207\u308a\u66ff\u3048\u308b\u304b\u300d\u3088\u308a\u3001<strong>\u3069\u3053\u307e\u3067\u5236\u5fa1\u3059\u308b\u304b<\/strong>\u3058\u3083\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u8272\u5f69\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u65b9\u6cd5<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670816\u65e5-20_01_15.jpg\" alt=\"\" class=\"wp-image-12522\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670816\u65e5-20_01_15.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670816\u65e5-20_01_15-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">1. \u7d14\u7c8b\u306a\u9ed2\uff08#000000\uff09\u3092\u907f\u3051\u308b<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">\u7d14\u7c8b\u306a\u9ed2\u8272\u306e\u80cc\u666f\u306f\u907f\u3051\u308b\u3079\u304d<\/span><\/strong>\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u7406\u7531\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u304c\u5f37\u3059\u304e\u308b<\/strong> : \u767d\u30c6\u30ad\u30b9\u30c8\u3068\u306e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u304c\u5f37\u3059\u304e\u3066\u773c\u304c\u75b2\u308c\u308b<\/li>\n\n\n\n<li><strong>\u6df1\u5ea6\u306e\u8868\u73fe\u304c\u56f0\u96e3<\/strong> : \u3059\u3079\u3066\u304c\u540c\u3058\u9ed2\u3060\u3068\u3001\u968e\u5c64\u69cb\u9020\u304c\u8868\u73fe\u3067\u304d\u306a\u3044<\/li>\n\n\n\n<li><strong>\u6709\u6a5fEL\u3067\u306e\u713c\u304d\u4ed8\u304d<\/strong> : \u9577\u6642\u9593\u8868\u793a\u3067\u753b\u9762\u713c\u304d\u4ed8\u304d\u306e\u30ea\u30b9\u30af<\/li>\n<\/ul>\n\n\n\n<p><strong>\u63a8\u5968\u3055\u308c\u308b\u80cc\u666f\u8272<\/strong>\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n\/* \u826f\u3044\u4f8b\uff1a\u30c0\u30fc\u30af\u30b0\u30ec\u30fc\u7cfb *\/\n--bg-dark-1: #1a1a1a; \/* \u6700\u3082\u6697\u3044\u80cc\u666f *\/\n--bg-dark-2: #2d2d2d; \/* \u30bb\u30ab\u30f3\u30c0\u30ea\u80cc\u666f *\/\n--bg-dark-3: #3a3a3a; \/* \u6d6e\u304d\u4e0a\u304c\u3063\u305f\u8981\u7d20 *\/\n\n\/* \u60aa\u3044\u4f8b *\/\n--bg-dark-bad: #000000; \/* \u7d14\u7c8b\u306a\u9ed2\u306f\u907f\u3051\u308b *\/\n}<\/code><\/pre><\/div>\n\n\n\n\n\n\n\n<h3 class=\"wp-block-heading\">2. \u9069\u5207\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u3092\u7dad\u6301<\/h3>\n\n\n\n<p>WCAG\uff08Web Content Accessibility Guidelines\uff09\u306b\u6e96\u62e0\u3057\u305f\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u3092\u78ba\u4fdd\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u901a\u5e38\u30c6\u30ad\u30b9\u30c8<\/strong> : \u6700\u4f4e 4.5:1<\/li>\n\n\n\n<li><strong>\u5927\u304d\u3044\u30c6\u30ad\u30b9\u30c8<\/strong> : \u6700\u4f4e 3:1<\/li>\n\n\n\n<li><strong>AAA\u57fa\u6e96\uff08\u63a8\u5968\uff09<\/strong>: \u901a\u5e38\u30c6\u30ad\u30b9\u30c8 7:1\u3001\u5927\u304d\u3044\u30c6\u30ad\u30b9\u30c8 4.5:1<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u30c1\u30a7\u30c3\u30af\u30c4\u30fc\u30eb<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WebAIM Contrast Checker (https:\/\/webaim.org\/resources\/contrastchecker\/)<\/li>\n\n\n\n<li>Chrome DevTools \u306e Lighthouse<\/li>\n\n\n\n<li>Figma \u306e Contrast Plugin<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u5b9f\u88c5\u4f8b<\/h4>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u60aa\u3044\u4f8b\uff1a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u4e0d\u8db3 *\/\n.bad-contrast {\nbackground: #2d2d2d;\ncolor: #4a4a4a; \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4 1.7:1\uff08\u4e0d\u5341\u5206\uff09 *\/\n}\n\n\/* \u826f\u3044\u4f8b\uff1a\u5341\u5206\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8 *\/\n.good-contrast {\nbackground: #1a1a1a;\ncolor: #e0e0e0; \/* \u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4 12:1\uff08\u512a\u79c0\uff09 *\/\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u5f69\u5ea6\u3092\u8abf\u6574\u3059\u308b<\/h3>\n\n\n\n<p>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u3068\u540c\u3058\u5f69\u5ea6\u306e\u8272\u3092\u4f7f\u3046\u3068\u3001\u7729\u3057\u3059\u304e\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n\/* \u30e9\u30a4\u30c8\u30e2\u30fc\u30c9 *\/\n--primary-light: hsl(210, 100%, 50%); \/* \u9bae\u3084\u304b\u306a\u9752 *\/\n--success-light: hsl(120, 100%, 35%); \/* \u9bae\u3084\u304b\u306a\u7dd1 *\/\n}\n\n@media (prefers-color-scheme: dark) {\n:root {\n\/* \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\uff1a\u5f69\u5ea6\u3092\u4e0b\u3052\u308b *\/\n--primary-light: hsl(210, 80%, 60%); \/* \u3084\u3084\u6de1\u3044\u9752 *\/\n--success-light: hsl(120, 60%, 50%); \/* \u3084\u3084\u6de1\u3044\u7dd1 *\/\n}\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u968e\u5c64\u69cb\u9020\u3092\u8272\u306e\u660e\u5ea6\u3067\u8868\u73fe<\/h3>\n\n\n\n<p>\u30ab\u30fc\u30c9\u3084\u30e2\u30fc\u30c0\u30eb\u3001\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u306a\u3069\u306e\u968e\u5c64\u69cb\u9020\u3092\u3001**\u80cc\u666f\u8272\u306e\u660e\u5ea6\u5dee**\u3067\u8868\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>[data-theme=&quot;dark&quot;] {\n--level-0: #0d0d0d; \/* \u6700\u80cc\u9762 *\/\n--level-1: #1a1a1a; \/* \u901a\u5e38\u306e\u80cc\u666f *\/\n--level-2: #2d2d2d; \/* \u30ab\u30fc\u30c9 *\/\n--level-3: #3a3a3a; \/* \u30e2\u30fc\u30c0\u30eb *\/\n--level-4: #474747; \/* \u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3 *\/\n}\n\n.page-background {\nbackground: var(--level-0);\n}\n\n.content-area {\nbackground: var(--level-1);\n}\n\n.card {\nbackground: var(--level-2);\n}\n\n.modal {\nbackground: var(--level-3);\nbox-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u30b0\u30ec\u30fc\u30b9\u30b1\u30fc\u30eb\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u30c6\u30ad\u30b9\u30c8\u306e\u91cd\u8981\u5ea6\u306b\u5fdc\u3058\u3066\u3001\u8907\u6570\u6bb5\u968e\u306e\u30b0\u30ec\u30fc\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>[data-theme=&quot;dark&quot;] {\n--text-primary: #e0e0e0; \/* \u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4 *\/\n--text-secondary: #b0b0b0; \/* \u88dc\u8db3\u60c5\u5831 *\/\n--text-tertiary: #808080; \/* \u30ad\u30e3\u30d7\u30b7\u30e7\u30f3 *\/\n--text-disabled: #505050; \/* \u7121\u52b9\u5316\u72b6\u614b *\/\n}\n\nh1, h2, h3 {\ncolor: var(--text-primary);\n}\n\np {\ncolor: var(--text-secondary);\n}\n\n.caption {\ncolor: var(--text-tertiary);\n}\n\nbutton:disabled {\ncolor: var(--text-disabled);\n}<\/code><\/pre><\/div>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u9ed2\u3068\u767d\u3092\u53cd\u8ee2\u3055\u305b\u308b\u3060\u3051\u3058\u3083\u30c0\u30e1\u306a\u3093\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u305d\u3046\u3058\u3083\u3002<br>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u300c\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u300d\u3068\u300c\u5f69\u5ea6\u306e\u6291\u5236\u300d\u304c\u809d\u5fc3\u306a\u306e\u3058\u3083\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3078\u306e\u914d\u616e\u3057\u305f\u5b9f\u8df5\u65b9\u6cd5<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_03_10.jpg\" alt=\"\" class=\"wp-image-12437\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_03_10.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_03_10-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">1. forced-colors \u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea<\/h3>\n\n\n\n<p>Windows\u306e\u30cf\u30a4\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u30e2\u30fc\u30c9\u306a\u3069\u3001OS\u30ec\u30d9\u30eb\u3067\u5f37\u5236\u7684\u306b\u30ab\u30e9\u30fc\u8a2d\u5b9a\u304c\u9069\u7528\u3055\u308c\u308b\u74b0\u5883\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>@media (forced-colors: active) {\n\/* \u30b7\u30b9\u30c6\u30e0\u30ab\u30e9\u30fc\u3092\u4f7f\u7528 *\/\nbody {\nbackground-color: Canvas;\ncolor: CanvasText;\n}\n\na {\ncolor: LinkText;\n}\n\nbutton {\nborder: 1px solid ButtonBorder;\nbackground-color: ButtonFace;\ncolor: ButtonText;\n}\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">2. prefers-contrast \u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea<\/h3>\n\n\n\n<p>\u30e6\u30fc\u30b6\u30fc\u304c\u9ad8\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u5e0c\u671b\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>@media (prefers-contrast: more) {\n:root {\n\/* \u3088\u308a\u5f37\u3044\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u63d0\u4f9b *\/\n--text-primary: #ffffff;\n--bg-primary: #000000;\n}\n}\n\n@media (prefers-contrast: less) {\n:root {\n\/* \u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u63d0\u4f9b\uff08\u5149\u904e\u654f\u75c7\u306e\u65b9\u5411\u3051\uff09 *\/\n--text-primary: #c0c0c0;\n--bg-primary: #2a2a2a;\n}\n}\n<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3. prefers-reduced-motion<\/h3>\n\n\n\n<p>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306b\u654f\u611f\u306a\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u914d\u616e\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30c7\u30d5\u30a9\u30eb\u30c8\uff1a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3042\u308a *\/\n* {\ntransition: background-color 0.3s ease, color 0.3s ease;\n}\n\n\/* \u52d5\u304d\u3092\u6e1b\u3089\u3057\u305f\u3044\u5834\u5408\uff1a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u7121\u52b9\u5316 *\/\n@media (prefers-reduced-motion: reduce) {\n* {\ntransition: none !important;\nanimation: none !important;\n}\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u30ad\u30fc\u30dc\u30fc\u30c9\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30ab\u30b9\u72b6\u614b\u3092\u660e\u78ba\u306b\u8868\u793a\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:focus-visible {\noutline: 2px solid var(--accent);\noutline-offset: 2px;\n}\n\n\/* \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u306f\u3088\u308a\u76ee\u7acb\u3064\u30d5\u30a9\u30fc\u30ab\u30b9\u30ea\u30f3\u30b0 *\/\n[data-theme=&quot;dark&quot;] :focus-visible {\noutline-color: var(--accent);\nbox-shadow: 0 0 0 3px rgba(77, 159, 255, 0.3);\n}<\/code><\/pre><\/div>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.00.55.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u3082\u3001\u8aad\u3081\u306a\u3044\u4eba\u304c\u51fa\u305f\u3089\u610f\u5473\u304c\u306a\u3044\u3093\u3067\u3059\u306d\u3002<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3046\u3080\u3002<br><strong>\u8ab0\u304b\u306b\u3068\u3063\u3066\u5feb\u9069\u3067\u3042\u308b\u3053\u3068<\/strong>\u3068<br><strong>\u8ab0\u306b\u3068\u3063\u3066\u3082\u4f7f\u3048\u308b\u3053\u3068<\/strong>\u306f\u5225\u7269\u306a\u306e\u3058\u3083\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u554f\u984c\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_06_45.jpg\" alt=\"\" class=\"wp-image-12438\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_06_45.jpg 1536w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-2026\u5e742\u670810\u65e5-20_06_45-768x512.jpg 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u554f\u984c1: \u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u6642\u306e\u30d5\u30e9\u30c3\u30b7\u30e5\uff08FOUC\uff09<\/h3>\n\n\n\n<p><strong>\u75c7\u72b6<\/strong> : \u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u6642\u306b\u3001\u4e00\u77ac\u30e9\u30a4\u30c8\u30e2\u30fc\u30c9\u304c\u8868\u793a\u3055\u308c\u3066\u304b\u3089\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306b\u5207\u308a\u66ff\u308f\u308b\u3002<\/p>\n\n\n\n<p><strong>\u539f\u56e0<\/strong> : JavaScript\u306e\u5b9f\u884c\u304cDOM\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3088\u308a\u9045\u3044\u305f\u3081\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u6c7a\u7b56<\/strong> :&#8220;\u5185\u3067\u30a4\u30f3\u30e9\u30a4\u30f3\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\uff1a<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"OPXaadj\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/OPXaadj\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u554f\u984c2: \u753b\u50cf\u306e\u898b\u3065\u3089\u3055<\/h3>\n\n\n\n<p><strong>\u75c7\u72b6<\/strong> : \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3067\u5199\u771f\u304c\u7729\u3057\u3059\u304e\u308b\u3001\u307e\u305f\u306f\u6697\u3059\u304e\u308b\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u6c7a\u7b56<\/strong> : CSS\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u8abf\u6574\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>@media (prefers-color-scheme: dark) {\nimg {\n\/* \u5c11\u3057\u6697\u304f\u3001\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3092\u4e0b\u3052\u308b *\/\nfilter: brightness(0.9) contrast(0.9);\n}\n\n\/* \u30a2\u30a4\u30b3\u30f3\u306a\u3069\u306f\u53cd\u8ee2 *\/\n.icon {\nfilter: invert(1);\n}\n\n\/* \u30ed\u30b4\u306f\u500b\u5225\u5bfe\u5fdc *\/\n.logo {\nfilter: brightness(0) invert(1);\n}\n}<\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u554f\u984c3: SVG\u30a2\u30a4\u30b3\u30f3\u306e\u8272\u304c\u5909\u308f\u3089\u306a\u3044<\/h3>\n\n\n\n<p><strong>\u75c7\u72b6<\/strong> : SVG\u30d5\u30a1\u30a4\u30eb\u5185\u3067\u8272\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\u3001CSS\u3067\u4e0a\u66f8\u304d\u3067\u304d\u306a\u3044\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u6c7a\u7b56<\/strong> : SVG\u3092\u30a4\u30f3\u30e9\u30a4\u30f3\u3067\u57cb\u3081\u8fbc\u3080\u304b\u3001`currentColor`\u3092\u4f7f\u7528\uff1a<\/p>\n\n\n\n<p class=\"codepen\" data-height=\"300\" data-default-tab=\"html,result\" data-slug-hash=\"OPXaaYx\" data-pen-title=\"Untitled\" data-user=\"ddwkeakz-the-reactor\" style=\"height: 300px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid; margin: 1em 0; padding: 1em;\">\n      <span>See the Pen <a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\/pen\/OPXaaYx\">\n  Untitled<\/a> by \u305b\u3044\u3084 (<a href=\"https:\/\/codepen.io\/ddwkeakz-the-reactor\">@ddwkeakz-the-reactor<\/a>)\n  on <a href=\"https:\/\/codepen.io\">CodePen<\/a>.<\/span>\n      <\/p>\n      <script async src=\"https:\/\/public.codepenassets.com\/embed\/index.js\"><\/script>\n\n\n\n<h3 class=\"wp-block-heading\">\u554f\u984c4: \u52d5\u753b\u306e\u5468\u56f2\u304c\u7729\u3057\u3044<\/h3>\n\n\n\n<p><strong>\u75c7\u72b6<\/strong> : \u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u6642\u306b\u52d5\u753b\u30d7\u30ec\u30a4\u30e4\u30fc\u306e\u5468\u56f2\u304c\u660e\u308b\u3059\u304e\u308b\u3002<\/p>\n\n\n\n<p><strong>\u89e3\u6c7a\u7b56<\/strong> :\u30d3\u30c7\u30aa\u5468\u56f2\u306b\u6697\u3044\u80cc\u666f\u3092\u914d\u7f6e\uff1a<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.video-container {\nbackground: #000;\npadding: 2rem;\nborder-radius: 8px;\n}\n\nvideo {\ndisplay: block;\nwidth: 100%;\nheight: auto;\n}<\/code><\/pre><\/div>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.48.08.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3063\u3066\u3001\u601d\u3063\u3066\u305f\u3088\u308a\u305a\u3063\u3068\u5965\u304c\u6df1\u3044\u3067\u3059\u306d\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-right\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.12.07.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3046\u3080\u3002<br>\u5358\u306a\u308b\u914d\u8272\u5207\u308a\u66ff\u3048\u3067\u306f\u306a\u304f\u3001<br><strong>\u4f53\u9a13\u30fb\u8a2d\u8a08\u30fb\u914d\u616e\u306e\u96c6\u5408\u4f53<\/strong>\u306a\u306e\u3058\u3083<\/strong>\uff01<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -square\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.06.05.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong>\u3053\u308c\u304b\u3089\u306f<br>\u300c\u3068\u308a\u3042\u3048\u305a\u9ed2\u300d\u3058\u3083\u306a\u304f\u3066\u3001<br>\u7406\u7531\u3092\u6301\u3063\u3066\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u3092\u4f5c\u308c\u305d\u3046\u3067\u3059<\/strong>\uff01<br><strong>\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\uff01<\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001CSS\u3092\u4f7f\u3063\u305f\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u5b9f\u88c5\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-big_icon_point\"><br><strong>\u30fbprefers-color-scheme\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea<\/strong>: OS\u8a2d\u5b9a\u3092\u81ea\u52d5\u691c\u51fa\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u597d\u307f\u306b\u5fdc\u3058\u305f\u8868\u793a\u3092\u5b9f\u73fe<br>\u30fb<strong>CSS\u5909\u6570\u306e\u6d3b\u7528 :<\/strong> \u4e00\u7b87\u6240\u3067\u8272\u3092\u7ba1\u7406\u3057\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a<br>\u30fb<strong>JavaScript\u306b\u3088\u308b\u624b\u52d5\u5207\u308a\u66ff\u3048 : <\/strong>\u30c8\u30b0\u30eb\u30dc\u30bf\u30f3\u3068localStorage\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u7531\u306b\u9078\u629e\u53ef\u80fd<br>\u30fb<strong>\u8272\u5f69\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9 : <\/strong>\u7d14\u7c8b\u306a\u9ed2\u3092\u907f\u3051\u3001\u9069\u5207\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u6bd4\u3068\u5f69\u5ea6\u3092\u7dad\u6301<br><strong>\u30fb\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc : <\/strong> forced-colors\u3001prefers-contrast\u3001prefers-reduced-motion\u306a\u3069\u3001\u591a\u69d8\u306a\u30e6\u30fc\u30b6\u30fc\u30cb\u30fc\u30ba\u306b\u5bfe\u5fdc<br><strong>\u30fb\u554f\u984c\u89e3\u6c7a :<\/strong> FOUC\u9632\u6b62\u3001\u753b\u50cf\u8abf\u6574\u3001SVG\u5bfe\u5fdc\u306a\u3069\u3001\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\u3092\u30ab\u30d0\u30fc<\/p>\n\n\n\n<p><strong><span class=\"swl-marker mark_yellow\">\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u6a5f\u80fd\u3067\u3059\u3002<\/span><\/strong>\u9069\u5207\u306a\u8272\u5f69\u8a2d\u8a08\u3068\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5feb\u9069\u306a\u95b2\u89a7\u4f53\u9a13\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u306f`prefers-color-scheme`\u3092\u4f7f\u3063\u305f\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u304b\u3089\u59cb\u3081\u3001\u5f90\u3005\u306bJavaScript\u306b\u3088\u308b\u624b\u52d5\u5207\u308a\u66ff\u3048\u3084\u9ad8\u5ea6\u306a\u8272\u5f69\u7ba1\u7406\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304f\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u5b9f\u88c5\u306f\u3001\u30e2\u30c0\u30f3\u306aWeb\u30b5\u30a4\u30c8\u306b\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305c\u3072\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u6d3b\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"index_id17\">WithCode\u3092\u4f53\u9a13\u3067\u304d\u308b\u521d\u7d1a\u30b3\u30fc\u30b9\u516c\u958b\u4e2d\uff01<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img decoding=\"async\" width=\"600\" height=\"500\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/04\/\u30d0\u30ca\u30fc_300\u00d7250_20240425.png\" alt=\"\" class=\"wp-image-2650\"\/><\/figure>\n<\/div>\n\n\n<p>\u672c\u8a18\u4e8b\u3067\u3054\u7d39\u4ecb\u3057\u305f\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u306e\u5b9f\u88c5\u65b9\u6cd5\u306f\u3001Web\u5236\u4f5c\u306e\u5b9f\u52d9\u3067\u975e\u5e38\u306b\u91cd\u8981\u306a\u30b9\u30ad\u30eb\u3067\u3059\u3002WithCode\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u6700\u65b0\u6280\u8853\u3092\u542b\u3080\u5b9f\u8df5\u7684\u306aWeb\u5236\u4f5c\u30b9\u30ad\u30eb\u3092\u5b66\u3079\u308b\u74b0\u5883\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u521d\u7d1a\u30b3\u30fc\u30b9(\u00a549,800)\u304c\u5b8c\u5168\u7121\u6599\u306b\uff01<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u671f\u9593\uff1a1\u9031\u9593<\/strong><\/li>\n\n\n\n<li><strong>\u5b66\u7fd2\u5185\u5bb9\uff1a<\/strong><br><strong>\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\/\u57fa\u790e\u77e5\u8b58\/\u74b0\u5883\u69cb\u7bc9\/HTML\/CSS\/LP\u30fb\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u4f5c\u6210<\/strong><br><strong>\u2192 <span class=\"swl-marker mark_yellow\">\u6b63\u3057\u3044\u5b66\u7fd2\u65b9\u6cd5\u3067\u300c\u78ba\u304b\u306a\u6210\u9577\u300d\u3092\u5b9f\u611f\u3067\u304d\u308b\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\u3002<\/span><\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u526f\u696d\u30fb\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u304c\u4e3b\u6d41\u306b\u306a\u3063\u3066\u3044\u308b\u4eca\u3053\u305d\u3001\u81ea\u3089\u306e\u30b9\u30ad\u30eb\u3067\u7a3c\u3052\u308b\u4eba\u6750\u3092\u76ee\u6307\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n\n\n\n<p>\u672a\u7d4c\u9a13\u3067\u3082\u5fc3\u914d\u3059\u308b\u3053\u3068\u3042\u308a\u307e\u305b\u3093\u3002\u521d\u7d1a\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b\u3055\u308c\u308b\u65b9\u306e\u5927\u591a\u6570\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u3067\u3001\u60a9\u307f\u3084\u4e0d\u5b89\u3092\u304a\u805e\u304b\u305b\u304f\u3060\u3055\u3044\uff01<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/withcode.tech\/reservation\/\" style=\"background-color:#ffbf00\"><strong>\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u306b\u7533\u3057\u8fbc\u3080<\/strong> <strong>\u2192<\/strong><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd1\u5e74\u3001\u591a\u304f\u306eWeb\u30b5\u30a4\u30c8\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\uff08\u30c0\u30fc\u30af\u30c6\u30fc\u30de\uff09\u304c\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002Apple\u306eiOS\u3001macOS\u3001Google\u306eAndroid\u3001Windows\u306a\u3069\u306eOS\u30ec\u30d9\u30eb\u3067\u3082\u30c0\u30fc\u30af\u30e2\u30fc\u30c9\u304c\u6a19\u6e96\u6a5f\u80fd\u3068\u3057\u3066\u63d0\u4f9b 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