{"id":893,"date":"2025-12-22T11:14:52","date_gmt":"2025-12-22T03:14:52","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=893"},"modified":"2025-12-22T11:14:52","modified_gmt":"2025-12-22T03:14:52","slug":"html5%e4%b9%8b%e9%ab%98%e5%ba%a6%e5%a1%8c%e9%99%b7%e9%97%ae%e9%a2%98%e7%9a%84%e8%a7%a3%e5%86%b3-2","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/22\/html5%e4%b9%8b%e9%ab%98%e5%ba%a6%e5%a1%8c%e9%99%b7%e9%97%ae%e9%a2%98%e7%9a%84%e8%a7%a3%e5%86%b3-2\/","title":{"rendered":"HTML5\u4e4b\u9ad8\u5ea6\u584c\u9677\u95ee\u9898\u7684\u89e3\u51b3"},"content":{"rendered":"\n<p>\u5728 <strong>HTML5 \/ CSS \u5e03\u5c40<\/strong> \u4e2d\uff0c<strong>\u9ad8\u5ea6\u584c\u9677\uff08Height Collapse\uff09<\/strong> \u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u95ee\u9898\uff0c\u5c24\u5176\u662f\u5728\u4f7f\u7528 <code>float<\/code>\uff08\u6d6e\u52a8\uff09\u5e03\u5c40\u65f6\u3002\u4e0b\u9762\u6211\u7528<strong>\u901a\u4fd7\u89e3\u91ca + \u539f\u56e0\u5206\u6790 + \u591a\u79cd\u89e3\u51b3\u65b9\u6848\uff08\u542b\u4f18\u7f3a\u70b9\uff09<\/strong>\uff0c\u4e00\u6b21\u6027\u5e2e\u4f60\u5f7b\u5e95\u641e\u61c2\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u4ec0\u4e48\u662f\u9ad8\u5ea6\u584c\u9677\uff1f<\/h2>\n\n\n\n<p><strong>\u73b0\u8c61\uff1a<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7236\u5143\u7d20\u4e2d\u5305\u542b\u4e86\u6d6e\u52a8\u5b50\u5143\u7d20\uff0c\u4f46\u7236\u5143\u7d20\u7684\u9ad8\u5ea6\u53d8\u6210\u4e86 <code>0<\/code>\uff0c\u80cc\u666f\u3001\u8fb9\u6846\u6d88\u5931\u3002<\/p>\n<\/blockquote>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;div class=&quot;parent&quot;&gt;\n  &amp;lt;div class=&quot;child&quot;&gt;&amp;lt;\/div&gt;\n&amp;lt;\/div&gt;\n\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  background: #eee;\n}\n.child {\n  float: left;\n  width: 100px;\n  height: 100px;\n  background: red;\n}\n\n<\/pre><\/div>\n\n\n<p>\ud83d\udccc <strong>\u7ed3\u679c\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7ea2\u8272\u5b50\u5143\u7d20\u5b58\u5728<\/li>\n\n\n\n<li>\u7070\u8272\u7236\u5143\u7d20\u201c\u584c\u9677\u201d\uff0c\u9ad8\u5ea6\u4e3a 0<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u4ea7\u751f\u9ad8\u5ea6\u584c\u9677\u7684\u6839\u672c\u539f\u56e0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">CSS \u89c4\u5219\u672c\u8d28<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u6d6e\u52a8\u5143\u7d20\u4f1a\u8131\u79bb\u6807\u51c6\u6587\u6863\u6d41<\/strong><\/p>\n<\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>float<\/code> \u4f1a\u8ba9\u5143\u7d20\uff1a\n<ul class=\"wp-block-list\">\n<li>\u8131\u79bb\u666e\u901a\u6587\u6863\u6d41<\/li>\n\n\n\n<li>\u4f46\u4ecd\u53c2\u4e0e\u6587\u672c\u73af\u7ed5<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7236\u5143\u7d20\u5728\u8ba1\u7b97\u9ad8\u5ea6\u65f6\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u4e0d\u4f1a\u8ba1\u7b97\u6d6e\u52a8\u5b50\u5143\u7d20\u7684\u9ad8\u5ea6<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udc49 <strong>\u6240\u4ee5\u7236\u5143\u7d20\u9ad8\u5ea6\u4e3a 0<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u9ad8\u5ea6\u584c\u9677\u7684 6 \u79cd\u7ecf\u5178\u89e3\u51b3\u65b9\u6848\uff08\u91cd\u70b9\uff09<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2705 \u65b9\u6848\u4e00\uff1a\u7ed9\u7236\u5143\u7d20\u8bbe\u7f6e\u56fa\u5b9a\u9ad8\u5ea6\uff08\u4e0d\u63a8\u8350\uff09<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  height: 100px;\n}\n\n<\/pre><\/div>\n\n\n<p>\u274c <strong>\u7f3a\u70b9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5185\u5bb9\u53d8\u5316\u9ad8\u5ea6\u5c31\u9519<\/li>\n\n\n\n<li>\u4e0d\u9002\u5408\u54cd\u5e94\u5f0f\u5e03\u5c40<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udccc <strong>\u4ec5\u7528\u4e8e\u6d4b\u8bd5\u6216\u9ad8\u5ea6\u56fa\u5b9a\u573a\u666f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2705 \u65b9\u6848\u4e8c\uff1a\u7236\u5143\u7d20\u4e5f\u6d6e\u52a8\uff08\u4e0d\u63a8\u8350\uff09<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  float: left;\n}\n\n<\/pre><\/div>\n\n\n<p>\u26a0\ufe0f <strong>\u95ee\u9898<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7236\u5143\u7d20\u7ee7\u7eed\u8131\u79bb\u6587\u6863\u6d41<\/li>\n\n\n\n<li>\u53ef\u80fd\u5f15\u53d1\u66f4\u5927\u5e03\u5c40\u6df7\u4e71<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2705 \u65b9\u6848\u4e09\uff1a\u5728\u6700\u540e\u6dfb\u52a0\u6e05\u9664\u6d6e\u52a8\u5143\u7d20\uff08\u4f20\u7edf\u505a\u6cd5\uff09<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;div class=&quot;parent&quot;&gt;\n  &amp;lt;div class=&quot;child&quot;&gt;&amp;lt;\/div&gt;\n  &amp;lt;div class=&quot;clear&quot;&gt;&amp;lt;\/div&gt;\n&amp;lt;\/div&gt;\n\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.clear {\n  clear: both;\n}\n\n<\/pre><\/div>\n\n\n<p>\u2714\ufe0f \u6709\u6548<br>\u274c \u591a\u4e86\u65e0\u610f\u4e49\u6807\u7b7e\uff0c<strong>\u8bed\u4e49\u4e0d\u53cb\u597d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2b50 \u65b9\u6848\u56db\uff1a\u4f2a\u5143\u7d20\u6e05\u9664\u6d6e\u52a8\uff08\u6700\u7ecf\u5178\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u901a\u7528 clearfix \u5199\u6cd5<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.clearfix::after {\n  content: &quot;&quot;;\n  display: block;\n  clear: both;\n}\n\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;div class=&quot;parent clearfix&quot;&gt;\n  &amp;lt;div class=&quot;child&quot;&gt;&amp;lt;\/div&gt;\n&amp;lt;\/div&gt;\n\n<\/pre><\/div>\n\n\n<p>\u2714\ufe0f <strong>\u517c\u5bb9\u6027\u597d\uff08IE8+\uff09<\/strong><br>\u2714\ufe0f \u4e0d\u6c61\u67d3 HTML \u7ed3\u6784<br>\u2714\ufe0f \u4f01\u4e1a\u9879\u76ee\u5e38\u7528<\/p>\n\n\n\n<p>\ud83d\udccc <strong>\u5f3a\u70c8\u63a8\u8350\u638c\u63e1<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2b50 \u65b9\u6848\u4e94\uff1a\u4f7f\u7528 <code>overflow<\/code> \u89e6\u53d1 BFC\uff08\u63a8\u8350\uff09<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  overflow: hidden;\n}\n\n<\/pre><\/div>\n\n\n<p>\u6216\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  overflow: auto;\n}\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u6709\u6548\uff1f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>overflow<\/code> \u2260 <code>visible<\/code> \u65f6<\/li>\n\n\n\n<li>\u4f1a\u89e6\u53d1 <strong>BFC\uff08\u5757\u7ea7\u683c\u5f0f\u5316\u4e0a\u4e0b\u6587\uff09<\/strong><\/li>\n\n\n\n<li>BFC \u4f1a\u5305\u542b\u5185\u90e8\u6d6e\u52a8\u5143\u7d20<\/li>\n<\/ul>\n\n\n\n<p>\u2714\ufe0f \u5199\u6cd5\u7b80\u6d01<br>\u274c <code>hidden<\/code> \u4f1a\u88c1\u526a\u6ea2\u51fa\u5185\u5bb9<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2b50 \u65b9\u6848\u516d\uff1a\u73b0\u4ee3\u5e03\u5c40\u65b9\u5f0f\uff08\u7ec8\u6781\u65b9\u6848\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 Flex \u5e03\u5c40\uff08\u63a8\u8350\uff09<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  display: flex;\n}\n\n<\/pre><\/div>\n\n\n<p>\u2714\ufe0f <strong>\u4e0d\u9700\u8981\u6e05\u9664\u6d6e\u52a8<\/strong><br>\u2714\ufe0f \u81ea\u9002\u5e94\u9ad8\u5ea6<br>\u2714\ufe0f HTML5 \u9879\u76ee\u9996\u9009<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 Grid \u5e03\u5c40<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  display: grid;\n}\n\n<\/pre><\/div>\n\n\n<p>\u2714\ufe0f \u540c\u6837\u4e0d\u4f1a\u51fa\u73b0\u9ad8\u5ea6\u584c\u9677<br>\u2714\ufe0f \u9002\u5408\u590d\u6742\u4e8c\u7ef4\u5e03\u5c40<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u89e3\u51b3\u65b9\u6848\u5bf9\u6bd4\u603b\u7ed3<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65b9\u6cd5<\/th><th>\u63a8\u8350\u5ea6<\/th><th>\u4f18\u70b9<\/th><th>\u7f3a\u70b9<\/th><\/tr><\/thead><tbody><tr><td>\u56fa\u5b9a\u9ad8\u5ea6<\/td><td>\u2b50<\/td><td>\u7b80\u5355<\/td><td>\u4e0d\u7075\u6d3b<\/td><\/tr><tr><td>\u7236\u5143\u7d20\u6d6e\u52a8<\/td><td>\u2b50<\/td><td>\u5feb<\/td><td>\u5e03\u5c40\u6df7\u4e71<\/td><\/tr><tr><td>\u6e05\u9664\u6d6e\u52a8\u5143\u7d20<\/td><td>\u2b50\u2b50<\/td><td>\u6709\u6548<\/td><td>HTML \u5197\u4f59<\/td><\/tr><tr><td>clearfix<\/td><td>\u2b50\u2b50\u2b50\u2b50<\/td><td>\u7a33\u5b9a\u901a\u7528<\/td><td>\u9700\u8bb0\u5fc6<\/td><\/tr><tr><td>overflow<\/td><td>\u2b50\u2b50\u2b50\u2b50<\/td><td>\u7b80\u6d01<\/td><td>\u53ef\u80fd\u88c1\u526a<\/td><\/tr><tr><td>Flex \/ Grid<\/td><td>\u2b50\u2b50\u2b50\u2b50\u2b50<\/td><td>\u73b0\u4ee3\u3001\u65e0\u5751<\/td><td>\u9700\u652f\u6301\u73b0\u4ee3\u6d4f\u89c8\u5668<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u4ec0\u4e48\u65f6\u5019\u8fd8\u4f1a\u9047\u5230\u9ad8\u5ea6\u584c\u9677\uff1f<\/h2>\n\n\n\n<p>\u9664\u4e86 <code>float<\/code>\uff0c\u4f60\u8fd8\u53ef\u80fd\u5728\u4ee5\u4e0b\u573a\u666f\u9047\u5230\u201c\u7c7b\u4f3c\u95ee\u9898\u201d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b50\u5143\u7d20 <code>position: absolute<\/code><\/li>\n\n\n\n<li>\u7236\u5143\u7d20\u6ca1\u6709\u5f62\u6210 BFC<\/li>\n\n\n\n<li>\u6d6e\u52a8 + \u8d1f margin<\/li>\n<\/ul>\n\n\n\n<p>\ud83d\udccc <strong>\u6838\u5fc3\u539f\u5219\uff1a<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u53ea\u8981\u5b50\u5143\u7d20\u8131\u79bb\u6587\u6863\u6d41\uff0c\u7236\u5143\u7d20\u5c31\u53ef\u80fd\u201c\u770b\u4e0d\u89c1\u5b83\u201d<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u6700\u4f73\u5b9e\u8df5\u5efa\u8bae\uff08\u5b9e\u6218\uff09<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c \u65b0\u9879\u76ee<strong>\u4e0d\u8981\u518d\u7528 float \u5e03\u5c40<\/strong><\/li>\n\n\n\n<li>\u2705 \u4f18\u5148\u4f7f\u7528 <strong>Flex \/ Grid<\/strong><\/li>\n\n\n\n<li>\ud83d\udd27 \u7ef4\u62a4\u8001\u9879\u76ee\uff1a\u7528 <code>clearfix<\/code><\/li>\n\n\n\n<li>\ud83d\udce6 \u7ec4\u4ef6\u7ea7\u5c01\u88c5\uff1a<code>overflow: hidden<\/code> \u6216 <code>display: flow-root<\/code><\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n.parent {\n  display: flow-root; \/* \u65b0\u4e00\u4ee3\u6e05\u9664\u6d6e\u52a8\u65b9\u5f0f *\/\n}\n\n<\/pre><\/div>\n\n\n<p>\u2714\ufe0f \u8bed\u4e49\u6e05\u6670<br>\u2714\ufe0f \u4e13\u95e8\u4e3a\u89e3\u51b3\u9ad8\u5ea6\u584c\u9677\u800c\u751f<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5982\u679c\u4f60\u613f\u610f\uff0c\u6211\u53ef\u4ee5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udd39 \u753b\u4e00\u5f20 <strong>\u9ad8\u5ea6\u584c\u9677\u539f\u7406\u793a\u610f\u56fe<\/strong><\/li>\n\n\n\n<li>\ud83d\udd39 \u7ed9\u4f60 <strong>\u9762\u8bd5\u7248\u7cbe\u7b80\u7b54\u6848<\/strong><\/li>\n\n\n\n<li>\ud83d\udd39 \u5bf9\u6bd4 <code>BFC \/ clearfix \/ flow-root<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u76f4\u63a5\u544a\u8bc9\u6211\u4f60\u60f3\u7528\u5728 <strong>\u5b66\u4e60 \/ \u9762\u8bd5 \/ \u5b9e\u6218\u9879\u76ee<\/strong> \u54ea\u79cd\u573a\u666f\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 HTML5 \/ CSS \u5e03\u5c40 \u4e2d\uff0c\u9ad8\u5ea6\u584c\u9677\uff08Height Collapse\uff09&#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/22\/html5%e4%b9%8b%e9%ab%98%e5%ba%a6%e5%a1%8c%e9%99%b7%e9%97%ae%e9%a2%98%e7%9a%84%e8%a7%a3%e5%86%b3-2\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-893","post","type-post","status-publish","format-standard","hentry","category-html5"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=893"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/893\/revisions"}],"predecessor-version":[{"id":894,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/893\/revisions\/894"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}