{"id":441751,"date":"2025-05-30T09:49:13","date_gmt":"2025-05-30T01:49:13","guid":{"rendered":"https:\/\/www.idc.net\/help\/?p=441751"},"modified":"2025-05-30T09:49:13","modified_gmt":"2025-05-30T01:49:13","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3-css-%e5%ae%9a%e4%bd%8d%ef%bc%9a%e6%89%93%e9%80%a0%e7%81%b5%e6%b4%bb%e5%b8%83%e5%b1%80%e7%9a%84%e6%a0%b8%e5%bf%83%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/441751\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3 CSS \u5b9a\u4f4d\uff1a\u6253\u9020\u7075\u6d3b\u5e03\u5c40\u7684\u6838\u5fc3\u6280\u5de7"},"content":{"rendered":"<p>&nbsp;<\/p>\n<h2>\u524d\u8a00<\/h2>\n<p>\u5728\u7f51\u9875\u524d\u7aef\u5f00\u53d1\u4e2d\uff0cCSS 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fixed<\/code>\uff09<\/h2>\n<p>\u56fa\u5b9a\u5b9a\u4f4d\u662f\u5c06\u5143\u7d20\u76f8\u5bf9\u4e8e\u6d4f\u89c8\u5668\u89c6\u53e3\u8fdb\u884c\u5b9a\u4f4d\uff0c\u65e0\u8bba\u9875\u9762\u5982\u4f55\u6eda\u52a8\uff0c\u5143\u7d20\u90fd\u4f1a\u56fa\u5b9a\u5728\u6307\u5b9a\u4f4d\u7f6e\u3002\u8fd9\u5bf9\u4e8e\u6784\u5efa\u60ac\u6d6e\u5bfc\u822a\u680f\u3001\u56fa\u5b9a\u6309\u94ae\u7b49\u975e\u5e38\u5b9e\u7528\u3002<\/p>\n<pre><code class=\"language-html\">&lt;style&gt;\r\n  div {\r\n    width: 400px;\r\n    height: 400px;\r\n    background-color: pink;\r\n    position: fixed;\r\n    top: 10px;\r\n    left: 10px;\r\n    right: 20px;\r\n    bottom: 20px;\r\n  }\r\n&lt;\/style&gt;\r\n&lt;div&gt;&lt;\/div&gt;\r\n<\/code><\/pre>\n<p>\u5f53\u4f7f\u7528\u4e86\u56fa\u5b9a\u5b9a\u4f4d\u540e\uff0c\u82e5\u540c\u65f6\u8bbe\u7f6e\u56db\u4e2a\u65b9\u5411\u7684\u503c\uff0c\u901a\u5e38\u4ee5 <code>top<\/code> \u548c <code>left<\/code> \u4e3a\u4f18\u5148\u3002\u5bf9\u4e8e\u90e8\u7f72\u5728<strong>\u9999\u6e2f\u4e91\u670d\u52a1\u5668<\/strong>\u4e0a\u7684\u5355\u9875\u5e94\u7528\uff0c\u8fd9\u79cd\u5b9a\u4f4d\u65b9\u5f0f\u5728\u79fb\u52a8\u7aef\u4f18\u5316\u4e2d\u6781\u5177\u4f18\u52bf\u3002<\/p>\n<h2>\u7edd\u5bf9\u5b9a\u4f4d\uff08<code>position: absolute<\/code>\uff09<\/h2>\n<p>\u7edd\u5bf9\u5b9a\u4f4d\u662f\u76f8\u5bf9\u4e8e\u6700\u8fd1\u7684\u201c\u5df2\u5b9a\u4f4d\u7956\u5148\u5143\u7d20\u201d\u8fdb\u884c\u5b9a\u4f4d\u3002\u5982\u679c\u6ca1\u6709\u627e\u5230\u8fd9\u6837\u7684\u7236\u7ea7\u5143\u7d20\uff0c\u5219\u4ee5\u6d4f\u89c8\u5668\u7a97\u53e3\u4e3a\u57fa\u51c6\u3002\u5b83\u540c\u6837\u652f\u6301\u4f7f\u7528 <code>top<\/code>\u3001<code>left<\/code>\u3001<code>bottom<\/code>\u3001<code>right<\/code> \u63a7\u5236\u4f4d\u7f6e\u3002<\/p>\n<p>\u8fd9\u5728\u6784\u5efa\u590d\u6742\u7ec4\u4ef6\u5982\u5f39\u51fa\u6846\u3001\u63d0\u793a\u6846\u7b49\u65f6\u975e\u5e38\u5e38\u89c1\u3002\u5408\u7406\u8bbe\u7f6e\u7236\u5143\u7d20\u5b9a\u4f4d\uff0c\u53ef\u4ee5\u786e\u4fdd\u5b50\u5143\u7d20\u5728\u591a\u7aef\u8bbe\u5907\u4e0a\u4fdd\u6301\u4e00\u81f4\u6027\uff0c\u63d0\u5347\u5728<strong>\u9999\u6e2fVPS<\/strong>\u4e0a\u8fd0\u884c\u524d\u7aef\u6846\u67b6\u65f6\u7684\u5e03\u5c40\u7cbe\u5ea6\u3002<\/p>\n<h2>\u76f8\u5bf9\u5b9a\u4f4d\uff08<code>position: relative<\/code>\uff09<\/h2>\n<p>\u76f8\u5bf9\u5b9a\u4f4d\u4e0d\u4f1a\u5c06\u5143\u7d20\u5b8c\u5168\u4ece\u6587\u6863\u6d41\u4e2d\u79fb\u9664\uff0c\u800c\u662f\u5728\u5176\u539f\u672c\u4f4d\u7f6e\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u504f\u79fb\u3002\u8fd9\u79cd\u5b9a\u4f4d\u4e3b\u8981\u7528\u4e8e\u5fae\u8c03\u5143\u7d20\u4f4d\u7f6e\uff0c\u5e38\u4e0e\u4f2a\u5143\u7d20\uff08\u5982 <code>::after<\/code>\uff09\u914d\u5408\u4f7f\u7528\u3002\u76f8\u5bf9\u5b9a\u4f4d\u652f\u6301 <code>z-index<\/code>\uff0c\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u5c42\u53e0\u4e0a\u4e0b\u6587\uff0c\u7ba1\u7406\u5143\u7d20\u7684\u663e\u793a\u4f18\u5148\u7ea7\u3002<\/p>\n<h2>\u5c42\u53e0\u4e0a\u4e0b\u6587\u4e0e <code>z-index<\/code> \u63a7\u5236<\/h2>\n<p>\u6d4f\u89c8\u5668\u9ed8\u8ba4\u4f1a\u6839\u636e\u5143\u7d20\u7684 HTML \u987a\u5e8f\u8fdb\u884c\u6e32\u67d3\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 <code>z-index<\/code> \u6765\u624b\u52a8\u63a7\u5236\u8c01\u5728\u4e0a\u9762\uff0c\u8c01\u5728\u4e0b\u9762\u3002<\/p>\n<pre><code class=\"language-css\">.item2 {\r\n  position: relative;\r\n  left: 20px;\r\n  top: 20px;\r\n  z-index: 1;\r\n}\r\n<\/code><\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c<code>z-index<\/code> \u4ec5\u5728\u5143\u7d20\u5df2\u7ecf\u8131\u79bb\u6587\u6863\u6d41\u7684\u524d\u63d0\u4e0b\u624d\u751f\u6548\uff0c\u4e14\u4e0d\u80fd\u8bbe\u7f6e\u5c0f\u6570\u3002\u5982\u679c\u5f00\u53d1\u4e2d\u9047\u5230\u5c42\u7ea7\u9519\u4e71\u7684\u95ee\u9898\uff0c\u5efa\u8bae\u68c0\u67e5\u662f\u5426\u6b63\u786e\u521b\u5efa\u4e86\u5c42\u53e0\u4e0a\u4e0b\u6587\u3002\u5bf9\u4e8e\u90e8\u7f72\u5728<strong>\u9999\u6e2f\u72ec\u7acb\u670d\u52a1\u5668<\/strong>\u4e0a\u7684\u5927\u578b\u524d\u7aef\u9879\u76ee\uff0c\u5408\u7406\u5212\u5206\u5c42\u53e0\u4e0a\u4e0b\u6587\u6709\u52a9\u4e8e\u63d0\u5347\u9875\u9762\u7a33\u5b9a\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h2>\u7c98\u6027\u5b9a\u4f4d\uff08<code>position: sticky<\/code>\uff09<\/h2>\n<p>\u7c98\u6027\u5b9a\u4f4d\u662f\u4e00\u79cd\u6df7\u5408\u5b9a\u4f4d\u65b9\u5f0f\uff0c\u5728\u5143\u7d20\u6eda\u52a8\u5230\u6307\u5b9a\u4f4d\u7f6e\u4e4b\u524d\u91c7\u7528\u76f8\u5bf9\u5b9a\u4f4d\uff0c\u5230\u8fbe\u9608\u503c\u540e\u201c\u7c98\u201d\u5728\u67d0\u5904\u3002<\/p>\n<pre><code class=\"language-css\">div {\r\n  position: sticky;\r\n  top: 10px;\r\n}\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5e0c\u671b\u5143\u7d20\u7c98\u5728\u5e95\u90e8\uff0c\u8fd8\u9700\u5c06\u5176\u7236\u5bb9\u5668\u8bbe\u7f6e <code>overflow: auto<\/code>\uff0c\u5e76\u5728\u5b50\u5143\u7d20\u4e0a\u5b9a\u4e49 <code>bottom: 0<\/code>\u3002\u8fd9\u4e00\u6280\u5de7\u5728\u505a\u9875\u9762\u56fa\u5b9a\u5e95\u90e8\u6309\u94ae\u65f6\u975e\u5e38\u6709\u7528\uff0c\u7279\u522b\u9002\u5408\u5728\u591a\u9875\u9762\u7cfb\u7edf\u4e2d\u8fdb\u884c\u6a21\u5757\u5316\u5f00\u53d1\u3002<\/p>\n<h2>\u5b9e\u8df5\u5efa\u8bae\u4e0e\u6027\u80fd\u4f18\u5316<\/h2>\n<p>\u5728\u4f7f\u7528\u5b9a\u4f4d\u5c5e\u6027\u65f6\uff0c\u5e94\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u907f\u514d\u5d4c\u5957\u591a\u5c42\u56fa\u5b9a\/\u7edd\u5bf9\u5b9a\u4f4d\uff0c\u63d0\u5347\u6027\u80fd\u3002<\/li>\n<li>\u5408\u7406\u4f7f\u7528\u5c42\u53e0\u4e0a\u4e0b\u6587\u5212\u5206\uff0c\u9632\u6b62 z-index 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\u5b9a\u4f4d\u662f\u5b9e\u73b0\u7cbe\u51c6\u5e03\u5c40\u7684\u5173\u952e\u624b\u6bb5\u3002\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u4e0d\u540c\u7c7b\u578b\u7684\u5b9a\u4f4d\u65b9\u5f0f\uff0c\u5f00 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197854],"tags":[],"class_list":["post-441751","post","type-post","status-publish","format-standard","hentry","category-html"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/441751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=441751"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/441751\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=441751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=441751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=441751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}