{"id":88163,"date":"2024-04-07T17:24:57","date_gmt":"2024-04-07T09:24:57","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/88163.html"},"modified":"2024-04-07T17:24:58","modified_gmt":"2024-04-07T09:24:58","slug":"css%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e6%9a%97%e9%bb%91%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/88163.html","title":{"rendered":"CSS\u5982\u4f55\u5b9e\u73b0\u6697\u9ed1\u6a21\u5f0f"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/02172627\/61ecd385-be61-465c-8ad5-99413fbb7db1.webp\" alt=\"CSS\u5982\u4f55\u5b9e\u73b0\u6697\u9ed1\u6a21\u5f0f\" \/><\/p>\n<p><p>\u6697\u9ed1\u6a21\u5f0f\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u6709\u4f7f\u7528CSS\u5a92\u4f53\u67e5\u8be2\u3001\u5229\u7528CSS\u53d8\u91cf\u3001\u5207\u6362\u7c7b\u540d\u6765\u5207\u6362\u6837\u5f0f\u5916\u3001\u5229\u7528JavaScript\u8c03\u6574\u6837\u5f0f\u548c\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u6216\u63d2\u4ef6\u7b49\u3002<strong>\u5a92\u4f53\u67e5\u8be2<\/strong>\u662f\u4e00\u79cd\u8f7b\u91cf\u4e14\u6613\u4e8e\u5b9e\u73b0\u7684\u65b9\u6cd5\u3002\u901a\u8fc7<code>@media (prefers-color-scheme: dark)<\/code>\u53ef\u4ee5\u68c0\u6d4b\u7528\u6237\u7cfb\u7edf\u662f\u5426\u542f\u7528\u6697\u9ed1\u6a21\u5f0f\uff0c\u5e76\u76f8\u5e94\u5730\u5e94\u7528\u7279\u5b9a\u7684CSS\u89c4\u5219\u3002\u4f7f\u7528<strong>CSS\u53d8\u91cf<\/strong>\u53ef\u4ee5\u5b9a\u4e49\u4e00\u7ec4\u53ef\u5728\u4e0d\u540c\u4e3b\u9898\u95f4\u5207\u6362\u7684\u6837\u5f0f\u5c5e\u6027\uff0c\u63d0\u9ad8\u4ee3\u7801\u7ef4\u62a4\u6027\u548c\u7075\u6d3b\u6027\u3002\u901a\u8fc7<strong>\u5207\u6362\u7c7b\u540d<\/strong>\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5728\u7528\u6237\u9009\u62e9\u6a21\u5f0f\u65f6\u6dfb\u52a0\u4e00\u4e2a\u7c7b\u5230HTML\u6839\u5143\u7d20\uff0c\u7136\u540e\u5b9a\u4e49\u76f8\u5e94\u7684\u6a21\u5f0f\u6837\u5f0f\u3002<strong>JavaScript<\/strong>\u53ef\u4ee5\u68c0\u6d4b\u7528\u6237\u7684\u6a21\u5f0f\u504f\u597d\uff0c\u5728\u9700\u8981\u65f6\u5207\u6362\u6837\u5f0f\u6216\u5b58\u50a8\u7528\u6237\u7684\u6a21\u5f0f\u9009\u62e9\u3002\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u6216\u63d2\u4ef6\u53ef\u4ee5\u7b80\u5316\u5b9e\u73b0\u8fc7\u7a0b\uff0c\u4f46\u53ef\u80fd\u589e\u52a0\u9875\u9762\u7684\u8d1f\u8f7d\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001CSS\u5a92\u4f53\u67e5\u8be2\u5b9e\u73b0\u6697\u9ed1\u6a21\u5f0f<\/h3>\n<\/p>\n<p><h4>\u5a92\u4f53\u67e5\u8be2\u57fa\u7840<\/h4>\n<\/p>\n<p><p>\u5a92\u4f53\u67e5\u8be2\u5141\u8bb8\u6211\u4eec\u6839\u636e\u7528\u6237\u8bbe\u5907\u7684\u7279\u5f81\u6765\u5e94\u7528CSS\u3002\u5229\u7528<code>prefers-color-scheme<\/code>\u8fd9\u4e00\u5a92\u4f53\u7279\u6027\uff0c\u7f51\u7ad9\u53ef\u4ee5\u8f7b\u677e\u5730\u5b9e\u73b0\u6697\u9ed1\u6a21\u5f0f\u3002\u4f60\u53ea\u9700\u8981\u5728CSS\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801\u7247\u6bb5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-css\">@media (prefers-color-scheme: dark) {<\/p>\n<p>  body {<\/p>\n<p>    background-color: #333;<\/p>\n<p>    color: #fff;<\/p>\n<p>  }<\/p>\n<p>  \/* \u5176\u4ed6\u5143\u7d20\u7684\u6697\u9ed1\u6a21\u5f0f\u6837\u5f0f *\/<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u5728\u7528\u6237\u7cfb\u7edf\u7684\u6697\u9ed1\u6a21\u5f0f\u6fc0\u6d3b\u65f6\uff0c\u5c06\u80cc\u666f\u8bbe\u4e3a\u6df1\u8272\uff0c\u6587\u672c\u8bbe\u4e3a\u6d45\u8272\u3002<\/p>\n<\/p>\n<p><h4>\u5b9e\u7528\u6280\u5de7<\/h4>\n<\/p>\n<p><p>\u5728\u5199\u5a92\u4f53\u67e5\u8be2\u65f6\uff0c\u4fdd\u6301\u6837\u5f0f\u7684\u4e00\u81f4\u6027\u548c\u6613\u7ef4\u62a4\u6027\u662f\u5173\u952e\u3002\u4f60\u53ef\u4ee5\u5bf9\u6697\u9ed1\u6a21\u5f0f\u548c\u666e\u901a\u6a21\u5f0f\u5171\u6709\u7684\u5143\u7d20\u6837\u5f0f\u8fdb\u884c\u5206\u7ec4\uff0c\u7136\u540e\u53ea\u5728\u5a92\u4f53\u67e5\u8be2\u4e2d\u8986\u76d6\u989c\u8272\u7b49\u5c11\u91cf\u53d8\u5316\u7684\u5c5e\u6027\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u4ee3\u7801\u91cd\u590d\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u5229\u7528CSS\u53d8\u91cf\u8fdb\u884c\u98ce\u683c\u7ba1\u7406<\/h3>\n<\/p>\n<p><h4>CSS\u53d8\u91cf\u7684\u5b9a\u4e49<\/h4>\n<\/p>\n<p><p>CSS\u53d8\u91cf\uff0c\u4e5f\u79f0\u4e3a\u81ea\u5b9a\u4e49\u5c5e\u6027\uff0c\u5141\u8bb8\u4f60\u5728\u6574\u4e2a\u6587\u6863\u4e2d\u91cd\u590d\u4f7f\u7528\u76f8\u540c\u7684\u503c\u3002\u4f7f\u7528CSS\u53d8\u91cf\u5b9a\u4e49\u6697\u9ed1\u6a21\u5f0f\u7684\u5173\u952e\u989c\u8272\u548c\u80cc\u666f\u8272\u53ef\u4ee5\u5927\u5e45\u7b80\u5316\u4e3b\u9898\u5207\u6362\u7684\u590d\u6742\u6027\u3002\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-css\">:root {<\/p>\n<p>  --background-color: #fff;<\/p>\n<p>  --text-color: #000;<\/p>\n<p>}<\/p>\n<p>@media (prefers-color-scheme: dark) {<\/p>\n<p>  :root {<\/p>\n<p>    --background-color: #333;<\/p>\n<p>    --text-color: #fff;<\/p>\n<p>  }<\/p>\n<p>}<\/p>\n<p>body {<\/p>\n<p>  background-color: var(--background-color);<\/p>\n<p>  color: var(--text-color);<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u52a8\u6001\u5207\u6362\u4e3b\u9898<\/h4>\n<\/p>\n<p><p>\u5f53\u9700\u8981\u8ba9\u7528\u6237\u5728\u6697\u9ed1\u6a21\u5f0f\u548c\u666e\u901a\u6a21\u5f0f\u95f4\u5207\u6362\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7JavaScript\u52a8\u6001\u4fee\u6539\u6839\u5143\u7d20\u7684CSS\u53d8\u91cf\u503c\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u5207\u6362\u7c7b\u540d\u6765\u5207\u6362\u6837\u5f0f<\/h3>\n<\/p>\n<p><h4>\u6dfb\u52a0\u4e3b\u9898\u5207\u6362\u7c7b<\/h4>\n<\/p>\n<p><p>\u901a\u8fc7\u6dfb\u52a0\u7279\u5b9a\u7684\u7c7b\u5230\u6839\u5143\u7d20\uff0c\u53ef\u4ee5\u5728\u7528\u6237\u9009\u62e9\u5207\u6362\u6697\u9ed1\u6a21\u5f0f\u65f6\uff0c\u5207\u6362\u5bf9\u5e94\u7684\u6837\u5f0f\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-css\">.dark-mode {<\/p>\n<p>  background-color: #333;<\/p>\n<p>  color: #fff;<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><pre><code class=\"language-javascript\">document.documentElement.classList.add(&#039;dark-mode&#039;);<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>\u6301\u4e45\u5316\u7528\u6237\u504f\u597d<\/h4>\n<\/p>\n<p><p>\u8fd8\u53ef\u4ee5\u901a\u8fc7\u672c\u5730\u5b58\u50a8\uff0c\u8bb0\u4f4f\u7528\u6237\u7684\u4e3b\u9898\u504f\u597d\uff0c\u5e76\u5728\u9875\u9762\u52a0\u8f7d\u65f6\u5e94\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u4f7f\u7528JavaScript\u8c03\u6574\u6837\u5f0f<\/h3>\n<\/p>\n<p><h4>\u68c0\u6d4b\u4e0e\u5e94\u7528\u6a21\u5f0f<\/h4>\n<\/p>\n<p><p>\u5229\u7528JavaScript\uff0c\u4f60\u53ef\u4ee5\u68c0\u6d4b\u7528\u6237\u7cfb\u7edf\u7684\u6697\u9ed1\u6a21\u5f0f\u504f\u597d\uff0c\u4ea6\u6216\u662f\u901a\u8fc7\u6309\u94ae\u8ba9\u7528\u6237\u81ea\u884c\u5207\u6362\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">if (window.matchMedia &amp;&amp; window.matchMedia(&#039;(prefers-color-scheme: dark)&#039;).matches) {<\/p>\n<p>  \/\/ 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