{"id":1879,"date":"2020-09-25T16:24:19","date_gmt":"2020-09-25T08:24:19","guid":{"rendered":"https:\/\/www.yumefx.com\/?p=1879"},"modified":"2021-03-02T11:23:10","modified_gmt":"2021-03-02T03:23:10","slug":"css%e6%a0%b7%e5%bc%8f%e8%a1%a8%e5%9f%ba%e7%a1%80%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.yumefx.com\/?p=1879","title":{"rendered":"CSS\u6837\u5f0f\u8868\u57fa\u7840\uff08\u4e00\uff09"},"content":{"rendered":"\n<p>CSS\u548cHTML\u4e00\u6837\uff0c\u4e5f\u662f\u4e00\u79cd\u6807\u8bb0\u8bed\u8a00\uff0c\u4e3b\u8981\u7528\u4e8e\u8bbe\u7f6eHTML\u9875\u9762\u4e2d\u7684\u6587\u672c\u3001\u56fe\u7247\u4ee5\u53ca\u7248\u9762\u7684\u663e\u793a\u6837\u5f0f\u548c\u5e03\u5c40\u3002<\/p>\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">\u683c\u5f0f\u4e0e\u4e66\u5199<\/h1>\n<p>CSS\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre>\n<span>\u9009\u62e9\u5668 {<\/span>\n<span>    \u5c5e\u6027: \u503c;<\/span>\n<span>    ...<\/span>\n<span>}<\/span>\n<\/pre>\n\n\n\n<p>\u4e3b\u8981\u6709\u4e09\u79cd\u4e66\u5199\u4f4d\u7f6e\uff0c\u4e00\u79cd\u662f\u5355\u72ec\u7684css\u6587\u4ef6\uff0c\u53eb\u505a\u5916\u90e8\u6837\u5f0f\u8868\uff0c\u7136\u540e\u5728html\u4e2d\u5f15\u5165\u3002<\/p>\n\n\n\n<pre>\n<span>&lt;head&gt;<\/span>\n<span>    ...<\/span>\n<span>    &lt;link rel=&quot;stylesheet&quot; type=&quot;text\/css&quot; href=&quot;test.css&quot;\/&gt;<\/span>\n<span>    ...<\/span>\n<span>&lt;\/head&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u7b2c\u4e8c\u79cd\u662f\u5199\u5230head\u6807\u7b7e\u7684style\u6807\u7b7e\u5185\uff0c\u53eb\u505a\u5185\u90e8\u6837\u5f0f\u8868\u3002<\/p>\n\n\n\n<pre>\n<span>&lt;head&gt;<\/span>\n<span>    ...<\/span>\n<span>    &lt;style&gt;<\/span>\n<span>        \u9009\u62e9\u5668 {<\/span>\n<span>            \u5c5e\u6027: \u503c;<\/span>\n<span>            ...<\/span>\n<span>        } <\/span>\n<span>        ...<\/span>\n<span>    &lt;\/style&gt;<\/span>\n<span>&lt;\/head&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u7b2c\u4e09\u79cd\u662f\u5199\u5230\u7f51\u9875\u5143\u7d20\u6807\u7b7e\u5185\uff0c\u53eb\u505a\u884c\u5185\u6837\u5f0f\u8868\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5c31\u4e0d\u9700\u8981\u5199\u9009\u62e9\u5668\uff0c\u53ea\u80fd\u63a7\u5236\u5f53\u524d\u6807\u7b7e\uff0c\u76f4\u63a5\u5199\u5c5e\u6027\u548c\u503c\u3002<\/p>\n\n\n\n<pre>\n<span>&lt;div style=&quot;\u5c5e\u6027: \u503c;...&quot;&gt;<\/span>\n<span>    ...<\/span>\n<span>&lt;\/div&gt;<\/span>\n<\/pre>\n\n\n\n<p>\u63a8\u8350\u4f7f\u7528\u7b2c\u4e00\u79cd\uff0c\u8fd9\u6837\u53ef\u4ee5\u5c06css\u4ee3\u7801\u548chtml\u4ee3\u7801\u5206\u5f00\u7ba1\u7406\uff0c\u4e5f\u65b9\u4fbf\u67e5\u627e\u3002<\/p>\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">CSS\u9009\u62e9\u5668<\/h1>\n<h3>\u57fa\u7840\u9009\u62e9\u5668<\/h3>\n\n\n\n<pre>\n<span>\/* \u6807\u7b7e\u9009\u62e9\u5668 *\/<\/span>\n<span>div {...}<\/span>\n<span><\/span>\n<span>\/* \u7c7b\u9009\u62e9\u5668 *\/<\/span>\n<span>.person {...}<\/span>\n<span><\/span>\n<span>\/* id\u9009\u62e9\u5668 *\/<\/span>\n<span>#button1 {...}<\/span>\n<span><\/span>\n<span>\/* \u901a\u914d\u7b26\u9009\u62e9\u5668 *\/<\/span>\n<span>* {...}<\/span>\n<\/pre>\n\n\n\n<h3>\u00a0<\/h3>\n<h3>\u590d\u5408\u9009\u62e9\u5668<\/h3>\n\n\n\n<pre>\n<span>\/* \u540e\u4ee3\u9009\u62e9\u5668 *\/<\/span>\n<span>ul li {...}<\/span>\n<span><\/span>\n<span>\/* \u5b50\u9009\u62e9\u5668 *\/<\/span>\n<span>ul&gt;li {...}<\/span>\n<span><\/span>\n<span>\/* \u5e76\u96c6\u9009\u62e9\u5668 *\/<\/span>\n<span>div,p {...}<\/span>\n<span><\/span>\n<span>\/* \u4f2a\u7c7b\u9009\u62e9\u5668\uff1a\u94fe\u63a5\u4f2a\u7c7b\u9009\u62e9\u5668 *\/<\/span>\n<span>a:link {...} \/* \u672a\u88ab\u8bbf\u95ee\u7684\u94fe\u63a5 *\/<\/span>\n<span>a:visited {...} \/* \u5df2\u88ab\u8bbf\u95ee\u7684\u94fe\u63a5 *\/<\/span>\n<span>a:hover {...} \/* \u9f20\u6807\u60ac\u505c\u7684\u94fe\u63a5 *\/<\/span>\n<span>a:hover b{...} \/* \u9f20\u6807\u60ac\u505ca\uff0cb\u4f5c\u51fa\u53cd\u5e94 *\/<\/span>\n<span>a:active {...} \/* \u9f20\u6807\u6309\u4e0b\u7684\u94fe\u63a5 *\/<\/span>\n<span><\/span>\n<span>\/* \u4f2a\u7c7b\u9009\u62e9\u5668\uff1afocus\u4f2a\u7c7b\u9009\u62e9\u5668 *\/<\/span>\n<span>input\uff1afocus {...} \/* \u5149\u6807\u6240\u5728\u7684\u8868\u5355\u5143\u7d20 *\/<\/span>\n<\/pre>\n\n\n\n<p>\u94fe\u63a5\u4f2a\u7c7b\u9009\u62e9\u5668\u4e66\u5199\u65f6\u5fc5\u987blvha\u987a\u5e8f\u3002<\/p>\n<h3>\u00a0<\/h3>\n<h3>CSS3\u65b0\u589e\u9009\u62e9\u5668<\/h3>\n<h5>\u5c5e\u6027\u9009\u62e9\u5668<\/h5>\n\n\n\n<pre>\n<span>\/* \u5177\u6709\u67d0\u4e2a\u5c5e\u6027 *\/<\/span>\n<span>input[value] {...}<\/span>\n<span><\/span>\n<span>\/* \u67d0\u4e2a\u5c5e\u6027\u7b49\u4e8e\u67d0\u4e2a\u503c *\/<\/span>\n<span>input[type=text] {...}<\/span>\n<span><\/span>\n<span>\/* \u67d0\u4e2a\u5c5e\u6027\u542b\u6709\u67d0\u4e2a\u503c *\/<\/span>\n<span>input[class*=slider] {...}<\/span>\n<\/pre>\n\n\n\n<h5>\u00a0<\/h5>\n<h5>\u7ed3\u6784\u4f2a\u7c7b\u9009\u62e9\u5668<\/h5>\n\n\n\n<pre>\n<span>\/* \u7b2c\u4e00\u4e2a\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:first-child {...}<\/span>\n<span><\/span>\n<span>\/* \u6700\u540e\u4e00\u4e2a\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:last-child {...}<\/span>\n<span><\/span>\n<span>\/* \u7b2cn\u4e2a\u5b50\u5143\u7d20\uff08\u8d77\u59cb\u6570\u4e3a1\uff09 *\/<\/span>\n<span>ul li:nth-child(n) {...}<\/span>\n<span><\/span>\n<span>\/* \u5947\u6570\u5b50\u5143\u7d20\uff08\u8d77\u59cb\u6570\u4e3a1\uff09 *\/<\/span>\n<span>ul li:nth-child(odd) {...}<\/span>\n<span>ul li:nth-child(2n+1) {...}<\/span>\n<span><\/span>\n<span>\/* \u5076\u6570\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:nth-child(even) {...}<\/span>\n<span>ul li:nth-child(2n) {...}<\/span>\n<span><\/span>\n<span>\/* \u524d5\u4e2a\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:nth-child(-n+5) {...}<\/span>\n<span><\/span>\n<span>\/* \u540e5\u4e2a\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:nth-child(n+5) {...}<\/span>\n<span><\/span>\n<span>\/* \u7279\u5b9a\u7c7b\u578b\u7684\u7b2cn\u4e2a\u5b50\u5143\u7d20 *\/<\/span>\n<span>ul li:first-of-type {...}<\/span>\n<\/pre>\n\n\n\n<p>\u5f53\u4f7f\u7528nth-child\u5e76\u4e14\u62ec\u53f7\u5185\u662f\u6709n\u7684\u516c\u5f0f\u65f6\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3afor i in range(n+1)\uff0c\u4ece0\u5f00\u59cb\u904d\u5386\u5b50\u5143\u7d20\uff0c\u7b2c0\u4e2a\u548c\u8d85\u51fa\u5b50\u5143\u7d20\u4e2a\u6570\u7684\u503c\u4f1a\u88ab\u5ffd\u7565\u3002<\/p>\n<p>nth-child\u9996\u5148\u4f1a\u5148\u5c06\u5b50\u5143\u7d20\u6392\u53f7\uff0c\u7136\u540e\u627e\u5230\u7b26\u5408\u6761\u4ef6\u7684\u5b50\u5143\u7d20\uff0c\u6700\u540e\u786e\u8ba4\u8be5\u5b50\u5143\u7d20\u7684\u7c7b\u578b\uff1bnth-of-type\u9996\u5148\u5c06\u7279\u5b9a\u7c7b\u578b\u7684\u5b50\u5143\u7d20\u9009\u51fa\u6765\u8fdb\u884c\u91cd\u65b0\u6392\u5e8f\uff0c\u7136\u540e\u627e\u5230\u7b26\u5408\u6761\u4ef6\u7684\u5b50\u5143\u7d20\u3002<\/p>\n<h5>\u4f2a\u5143\u7d20\u9009\u62e9\u5668<\/h5>\n<p>\u4f2a\u5143\u7d20\u5176\u5b9e\u662f\u4f7f\u7528CSS\u521b\u5efa\u7684\u65b0\u6807\u7b7e\u5143\u7d20\uff08\u884c\u5185\u5143\u7d20\uff09\uff0c\u5e76\u4e0d\u51fa\u73b0\u5728html\u7ed3\u6784\u4e2d\u3002<\/p>\n\n\n\n<pre>\n<span>\/* \u5728\u5143\u7d20\u5185\u90e8\u7684\u524d\u9762\u63d2\u5165\u5185\u5bb9 *\/<\/span>\n<span>ul::before {<\/span>\n<span>    content: &quot;&quot;;<\/span>\n<span>    ...<\/span>\n<span>}<\/span>\n<span><\/span>\n<span>\/* \u5728\u5143\u7d20\u5185\u90e8\u7684\u540e\u9762\u63d2\u5165\u5185\u5bb9 *\/<\/span>\n<span>ul::after {<\/span>\n<span>    content: &quot;&quot;;<\/span>\n<span>    ...<\/span>\n<span>}<\/span>\n<\/pre>\n\n\n\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">CSS\u4e09\u5927\u7279\u6027<\/h1>\n<h3>\u5c42\u53e0\u6027<\/h3>\n<p>\u5c31\u8fd1\u539f\u5219\uff0c\u540c\u4e00\u5143\u7d20\u7528\u540c\u4e00\u9009\u62e9\u5668\u591a\u6b21\u8bbe\u7f6e\u540c\u4e00\u6837\u5f0f\uff0c\u540e\u8005\u4f1a\u8986\u76d6\u524d\u8005\u3002<\/p>\n<h3>\u00a0<\/h3>\n<h3>\u7ee7\u627f\u6027<\/h3>\n<p>\u67d0\u4e9b\u6837\u5f0f\uff08text-\u3001font-\u3001line-\u3001color\uff09\u5b50\u5143\u7d20\u672a\u8bbe\u7f6e\u65f6\uff0c\u7ee7\u627f\u7236\u5143\u7d20\u7684\u6837\u5f0f\u3002<\/p>\n<h3>\u00a0<\/h3>\n<h3>\u4f18\u5148\u7ea7<\/h3>\n<p>\u540c\u4e00\u5143\u7d20\u7528\u4e0d\u540c\u9009\u62e9\u5668\u591a\u6b21\u8bbe\u7f6e\u540c\u4e00\u6837\u5f0f\uff0c\u5219\u6839\u636e\u9009\u62e9\u5668\u6743\u91cd\u6267\u884c\u3002\u4ece\u4f4e\u5230\u9ad8\u5206\u522b\u662f\uff1a<\/p>\n<ul>\n<li>\u7ee7\u627f\u6216\u8005*\uff080\uff0c0\uff0c0\uff0c0\uff09<\/li>\n<li>\u5143\u7d20\u9009\u62e9\u5668\u6216\u4f2a\u5143\u7d20\u9009\u62e9\u5668\uff080\uff0c0\uff0c0\uff0c1\uff09<\/li>\n<li>\u7c7b\u9009\u62e9\u5668\u6216\u4f2a\u7c7b\u9009\u62e9\u5668\uff080\uff0c0\uff0c1\uff0c0\uff09<\/li>\n<li>ID\u9009\u62e9\u5668\uff080\uff0c1\uff0c0\uff0c0\uff09<\/li>\n<li>\u884c\u5185\u6837\u5f0f\u8868\uff081\uff0c0\uff0c0\uff0c0\uff09<\/li>\n<li>!important\uff08\u65e0\u7a77\u5927\uff09\u3002<\/li>\n<\/ul>\n<p>\u5f53\u4f7f\u7528\u590d\u5408\u9009\u62e9\u5668\u65f6\uff0c\u4f1a\u51fa\u73b0\u6743\u91cd\u53e0\u52a0\u95ee\u9898\u3002<\/p>\n<p>\u4f8b\u5982ul li\u7684\u6743\u91cd\u662f\u4e24\u500d\u7684li\u7684\u6743\u91cd\uff0c\uff080\uff0c0\uff0c0\uff0c1\uff09+\uff080\uff0c0\uff0c0\uff0c1\uff09=\uff080\uff0c0\uff0c0\uff0c2\uff09 &gt; \uff080\uff0c0\uff0c0\uff0c1\uff09\u3002<\/p>\n<p><code>a:hover<\/code>\u7684\u6743\u91cd\u4e3a\uff080\uff0c0\uff0c1\uff0c1\uff09\u3002<\/p>\n<p>\u6743\u91cd\u53ef\u4ee5\u53e0\u52a0\uff0c\u4e0d\u4f1a\u8fdb\u4f4d\u3002\u4f8b\u5982\uff0c10\u5c42\u5b50\u7c7b\u9009\u62e9\u5668\u7684\u603b\u6743\u91cd\u4e3a\uff080\uff0c0\uff0c10\uff0c0\uff09\u3002<\/p>\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">\u5143\u7d20\u663e\u793a\u6a21\u5f0f<\/h1>\n<h3>\u5757\u5143\u7d20<\/h3>\n<p><code>&lt;div&gt;<\/code>\u7b49<\/p>\n<ul>\n<li>\u72ec\u5360\u4e00\u884c<\/li>\n<li>\u53ef\u4ee5\u63a7\u5236\u5bbd\u9ad8\u3001\u5185\u5916\u8fb9\u8ddd\u7b49<\/li>\n<li>\u5bbd\u5ea6\u9ed8\u8ba4\u662f\u5bb9\u5668\uff08\u7236\u7ea7\u5bbd\u5ea6\uff09\u7684100%<\/li>\n<li>\u662f\u4e00\u4e2a\u5bb9\u5668\u7ea7\u76d2\u5b50\uff0c\u91cc\u9762\u53ef\u4ee5\u653e\u5757\u7ea7\u5143\u7d20\u6216\u884c\u5185\u5143\u7d20<\/li>\n<li>\u6587\u5b57\u7c7b\u5143\u7d20\uff08<code>&lt;p&gt;<\/code>\u7b49\uff09\u5185\u4e0d\u80fd\u4f7f\u7528\u5757\u7ea7\u5143\u7d20\u3002<\/li>\n<\/ul>\n<h3>\u00a0<\/h3>\n<h3>\u884c\u5185\u5143\u7d20\uff08\u5185\u8054\u5143\u7d20\uff09<\/h3>\n<p><code>&lt;span&gt;<\/code>\u3001<code>&lt;a&gt;<\/code>\u7b49<\/p>\n<ul>\n<li>\u76f8\u90bb\u884c\u5185\u5143\u7d20\u540c\u5728\u4e00\u884c<\/li>\n<li>\u9ad8\u5bbd\u76f4\u63a5\u8bbe\u7f6e\u65e0\u6548<\/li>\n<li>\u9ed8\u8ba4\u5bbd\u5ea6\u5c31\u662f\u5b83\u672c\u8eab\u5bbd\u5ea6<\/li>\n<li>\u53ea\u80fd\u5bb9\u7eb3\u6587\u672c\u6216\u5176\u4ed6\u884c\u5185\u5143\u7d20<\/li>\n<\/ul>\n<h3>\u00a0<\/h3>\n<h3>\u884c\u5185\u5757\u5143\u7d20<\/h3>\n<p><code>&lt;img&gt;<\/code>\u3001<code>&lt;input&gt;<\/code>\u3001<code>&lt;td&gt;<\/code>\u7b49<\/p>\n<ul>\n<li>\u76f8\u90bb\u884c\u5185\u5757\u5143\u7d20\u540c\u5728\u4e00\u884c\uff0c\u4f46\u4e4b\u95f4\u4f1a\u6709\u7a7a\u767d\u7f1d\u9699\u3002<\/li>\n<li>\u9ed8\u8ba4\u5bbd\u5ea6\u5c31\u662f\u672c\u8eab\u5185\u5bb9\u5bbd\u5ea6\u3002<\/li>\n<li>\u5bbd\u9ad8\u3001\u5185\u5916\u8fb9\u8ddd\u7b49\u53ef\u4ee5\u63a7\u5236\u3002<\/li>\n<\/ul>\n<h3>\u00a0<\/h3>\n<h3>\u5143\u7d20\u663e\u793a\u6a21\u5f0f\u8f6c\u6362<\/h3>\n<p>\u4e00\u79cd\u5143\u7d20\u83b7\u5f97\u53e6\u4e00\u79cd\u5143\u7d20\u7684\u7279\u6027\uff0c\u4f8b\u5982\u589e\u52a0<code>&lt;a&gt;<\/code>\u7684\u89e6\u53d1\u8303\u56f4\uff0c\u8f6c\u6362\u6210\u5757\u7ea7\u5143\u7d20\u8bbe\u7f6e\u66f4\u5927\u7684\u5bbd\u9ad8\uff1a<\/p>\n\n\n\n<pre>\n<span>display: block;<\/span>\n<\/pre>\n\n\n\n<p>\u5176\u4ed6\u53ef\u53d6\u503c\u4e3ainline\u3001inline-block\u3002<\/p>\n<h1>\u00a0<\/h1>\n<h1 style=\"text-align: center;\">font\u5b57\u4f53\u5c5e\u6027<\/h1>\n<h3>font-family<\/h3>\n<p>\u5b9a\u4e49\u6587\u672c\u7684\u5b57\u4f53<\/p>\n\n\n\n<pre>\n<span>div {<\/span>\n<span>    font-family: Arail,&quot;Times New Roman&quot;; \/* \u8d4b\u4e88\u591a\u4e2a\u5b57\u4f53\u65f6\uff0c\u7528\u9017\u53f7\u9694\u5f00 *\/<\/span>\n<span>}<\/span>\n<\/pre>\n\n\n\n<p>\u4e00\u822c\u7ed9body\u6807\u7b7e\u4f7f\u7528\uff0c\u7531\u4e8e\u5143\u7d20\u5c5e\u6027\u7ee7\u627f\uff0c\u8fd9\u6837\u9875\u9762\u4e2d\u7684\u6240\u6709\u5143\u7d20\u90fd\u4f1a\u4ee5\u8be5\u5b57\u4f53\u663e\u793a\u3002<\/p>\n<h3>\u00a0<\/h3>\n<h3>font-size<\/h3>\n<p>\u5b9a\u4e49\u6587\u672c\u5927\u5c0f<\/p>\n\n\n\n<pre>\n<span>p {<\/span>\n<span>    font-size: 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