{"id":5264,"date":"2016-03-22T22:59:22","date_gmt":"2016-03-22T14:59:22","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5264"},"modified":"2018-01-10T00:13:19","modified_gmt":"2018-01-09T16:13:19","slug":"css-layout-base-20px","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2016\/03\/css-layout-base-20px\/","title":{"rendered":"\u4ee520\u50cf\u7d20\u4e3a\u57fa\u51c6\u7684CSS\u7f51\u9875\u5e03\u5c40\u5b9e\u8df5\u5206\u4eab"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=5264\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=5264<\/a><\/p>\n<h3>\u4e00\u3001\u4e00\u5207\u4eceline-height\u884c\u9ad8\u8bf4\u8d77<\/h3>\n<p>\u60f3\u60f3\u770b\uff0c\u4f60CSS\u6784\u5efa\u9875\u9762\u7684\u65f6\u5019\uff0c\u9ed8\u8ba4\u7684\u5b57\u4f53\u5927\u5c0f\u548c\u884c\u9ad8\u5206\u522b\u662f\u591a\u5c11\uff1f<\/p>\n<p>\u4e0b\u9762\u662f\u6211\u7edf\u8ba1\u7684\u4e00\u4e9b\u6570\u636e\uff1a<\/p>\n<ul>\n<li>\u65b0\u6d6a\u5fae\u535a\uff1a<code>12px\/1.5<\/code><\/li>\n<li>\u817e\u8baf\u5fae\u535a\uff1a<code>12px\/1.75<\/code><\/li>\n<li>\u6dd8\u5b9d\u7f51\/\u5929\u732b\/\u817e\u8baf\u5fae\u4e91\uff1a<code>12px\/1.5<\/code><\/li>\n<li>\u4eac\u4e1c\uff1a<code>12px\/150%<\/code><\/li>\n<\/ul>\n<p>\u8ba1\u7b97\u4e0b\u6765\uff0c\u57fa\u672c\u884c\u9ad8\u8981\u4e48\u662f18\u50cf\u7d20\uff0c\u8981\u4e48\u662f21\u50cf\u7d20~<\/p>\n<p>\u6211\u60f3\uff0c\u5927\u591a\u6570\u5c0f\u4f19\u4f34\u5e94\u8be5\u6ca1\u5173\u6ce8\u8fc7\u8fd9\u65b9\u9762\u7684\u7ec6\u8282\uff0c\u57fa\u672c\u884c\u9ad8\u5927\u81f4\u5c31\u53ef\u4ee5\uff0c\u53d6<code>1.5<\/code>\u65b9\u4fbf\u8ba1\u7b97\uff0c<code>1.75<\/code>\u5462\u4f3c\u4e4e\u4e5f\u65e0\u4f24\u5927\u96c5\u3002<\/p>\n<p>\u5f53\u4e0b\u7684\u7f51\u9875\u65e9\u5df2\u544a\u522b\u5f53\u521d\u5c31\u53ea\u80fd\u6d4f\u89c8\u4fe1\u606f\u7684\u90a3\u79cd\u72b6\u6001\uff0c\u9875\u9762\u7ed3\u6784\u66f4\u52a0\u590d\u6742\uff0c\u5927\u6bb5\u63cf\u8ff0\u6587\u5b57\u7684\u60c5\u51b5\u53ea\u5360\u5c11\u6570\uff0c\u56e0\u6b64\uff0c\u884c\u9ad8\u7684\u89d2\u8272\u6709\u70b9\u4ece\u9605\u8bfb\u4f53\u9a8c\u5c42\u9762\u8f6c\u6362\u4e3a\u66f4\u65b9\u4fbf\u7684\u8ba1\u7b97\u6216\u8005\u5176\u4ed6\u4ec0\u4e48\u89d2\u8272\u3002<\/p>\n<p>\u8fd9\u91cc\u7684\u201c\u5176\u4ed6\u4ec0\u4e48\u89d2\u8272\u201d\u770b\u4f3c\u5e73\u6de1\u65e0\u5947\u7684\u4e00\u53e5\u8bdd\uff0c\u5176\u5b9e\u624d\u662f\u672c\u6587\u7684\u4e3b\u89d2\u3002\u5728\u672c\u6587\uff0c\u884c\u9ad8\u62c5\u4efb\u4e86<strong>\u7f51\u9875\u5782\u76f4\u683c\u6805\u57fa\u51c6<\/strong>\u7684\u89d2\u8272\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/emtion\/ask.gif\" width=\"150\" height=\"150\" alt=\"\u4ec0\u4e48\u9b3c\uff1f\" class=\"alignnone\" \/><\/p>\n<p>\u6211\u4eec\u4ee5\u524d\u53ef\u80fd\u542c\u8fc7\u7f51\u9875\u683c\u6805\u5e03\u5c40\uff0c\u8001\u5b9e\u8bb2\uff0c\u6211\u5bf9\u6c34\u5e73\u683c\u6805\u4e00\u70b9\u5174\u8da3\u4e5f\u6ca1\u6709\uff0c\u51e0\u767e\u7bc7CSS\u6587\u7ae0\u6211\u4e5f\u4ece\u6765\u6ca1\u6709\u4ecb\u7ecd\u8fc7\uff0c\u56e0\u4e3a\u8ddf\u81ea\u5df1\u7684\u5e03\u5c40\u7406\u5ff5\u4e0d\u7b26\uff1b\u4f46\u662f\uff0c\u6211\u4eca\u5929\u5012\u662f\u8981\u63d0\u4e00\u63d0\u5782\u76f4\u683c\u6805\uff01<\/p>\n<p>\u9875\u9762\u5185\u5bb9\u5f80\u5f80\u662f\u81ea\u4e0a\u800c\u4e0b\u7011\u5e03\u5f0f\u7684\u5448\u73b0\uff0c\u5185\u5bb9\u5343\u53d8\u4e07\u5316\uff0c\u5143\u7d20\u7684\u9ad8\u5ea6\u4e5f\u662f\u53d8\u5e7b\u83ab\u6d4b\uff0c\u56e0\u6b64\u5bf9\u4e8e\u5782\u76f4\u65b9\u5411\uff0c\u6240\u8c13\u683c\u6805\uff0c\u51e0\u4e4e\u662f\u65e0\u7a3d\u4e4b\u8c08\u3002\u786e\u5b9e\u662f\u8fd9\u6837\uff0c\u4f46\u662f\uff0c\u5c40\u90e8\u7684\u683c\u6805\u6709\u65f6\u5019\u4f1a\u8ba9\u6211\u4eec\u7684\u9875\u9762\u53d8\u5f97\u66f4\u52a0\u89c4\u8303\uff0c\u4ee5\u53ca\u53ef\u4ee5\u8ba9\u6211\u4eec\u7684\u5de5\u4f5c\u66f4\u52a0\u8f7b\u677e\u3002<\/p>\n<p>\u800c\u8fd9\u4e00\u5207\uff0c\u5c31\u8981\u4ece\u884c\u9ad8\u8bf4\u8d77\u3002\u6211\u4eec\u4ee5\u524d\u5199\u9875\u9762\uff0c\u90fd\u662f\u8bbe\u7f6e\u5b57\u4f53\u5927\u5c0f\u4ee5\u53ca\u884c\u9ad8\u503c\uff0c\u786e\u5b9a\u5355\u884c\u6587\u672c\u6240\u5360\u636e\u7684\u9ad8\u5ea6\u5185\u5bb9\uff1b\u800c\u6211\u4eec\u8fd9\u91cc\uff0c\u5219\u9006\u5411\u601d\u7ef4\uff0c\u6211\u4eec\u5e0c\u671b\u9875\u9762\u57fa\u672c\u6587\u5b57\u6240\u5360\u636e\u7684\u9ad8\u5ea6\u662f<code>20<\/code>\u50cf\u7d20\uff0c\u5219\u6211\u4eec\u7684\u884c\u9ad8\u5e94\u8be5\u662f\uff1f<\/p>\n<p>\u73b0\u5728\u662f\u5927\u5c4f\u65f6\u4ee3\uff0c\u5047\u8bbe\u6211\u4eec\u7684\u9ed8\u8ba4\u5b57\u53f7\u5927\u5c0f\u662f<code>14<\/code>\u50cf\u7d20\uff0c\u6211\u4eec\u8ba1\u7b97\u4e0b\uff1a<code>20\/14\u22481.4285714285714286<\/code>\uff0c\u56db\u820d\u4e94\u5165\u7684\u7ed3\u679c\uff0c\u4e8e\u662f\u5f97\u5230\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>body {\n  line-height: 1.42857;\n  font-size: 14px;\n}<\/pre>\n<\/div>\n<p>\u4e0d\u597d\u610f\u601d\uff0c\u7ed9\u5927\u5bb6\u4e0b\u5957\u5b50\u4e86\uff0c\u6ce8\u610f\u4e86\uff0c\u5728CSS\u4e2d\uff0c\u884c\u9ad8\u8ba1\u7b97\u7684\u65f6\u5019\uff0c\u4e00\u5b9a\u4e0d\u8981\u5411\u4e0b\u56db\u820d\u4e94\u5165\uff0c\u800c\u8981\u5411\u4e0a\u3002\u7c7b\u4f3c\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u867d\u7136<code>14*1.42857<\/code>\u8fd1\u4e4e\u5c31\u662f20\u50cf\u7d20\uff0c\u4f46\u662f\uff0c\u4e0d\u597d\u610f\u601d\uff0c\u6700\u540e\u8fd8\u662f\u4ee519\u50cf\u7d20\u7684\u9ad8\u5ea6\u5448\u73b0\uff0c\u5728Chrome\u6d4f\u89c8\u5668\u4e0b\u5c31\u662f\u5982\u6b64\uff01<\/p>\n<p>\u56e0\u6b64\uff0c\u5b9e\u9645\u7684\u8bbe\u7f6e\u5e94\u8be5\u662f\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>body {\n  line-height: 1.42858;\n  font-size: 14px;\n}<\/pre>\n<\/div>\n<p>\u4e8e\u662f\uff0c\u6211\u4eec\u5c31\u5f97\u5230\u4e86\u4e00\u4e2a20\u50cf\u7d20\u4e3a\u57fa\u51c6\u7684\u7f51\u9875\u5e03\u5c40\u73af\u5883\u4e86\uff0c\u6b64\u65f6\uff0c\u666e\u901a\u4e00\u884c\u6587\u5b57\u7684\u9ad8\u5ea6\u5c31\u662f20\u50cf\u7d20\uff0c\u90a3\u53c8\u6709\u4ec0\u4e48\u597d\u5904\u5462\uff1f<\/p>\n<p>\u5355\u4e00\u6765\u770b\uff0c20\u50cf\u7d20\u7684\u9ad8\u5ea6\u5355\u5143\u548c21\u50cf\u7d20\u4f3c\u4e4e\u6ca1\u4ec0\u4e48\u5dee\u522b\uff0c\u4f46\u662f\uff0c\u5982\u679c\u653e\u5728\u4e00\u4e2a\u5b8c\u6574\u7684\u4f53\u7cfb\u91cc\u9762\uff0c\u4ef7\u503c\u5c31\u80fd\u5f88\u597d\u5730\u4f53\u73b0\u4e86\uff01<\/p>\n<h3>\u4e8c\u300120\u50cf\u7d20\u4e3a\u57fa\u51c6\u768420*20\u50cf\u7d20\u7684\u5c0f\u56fe\u6807\u7b56\u7565<\/h3>\n<p>\u57fa\u672c\u4e0a\u6bcf\u4e00\u4e2a\u7f51\u7ad9\u90fd\u79bb\u4e0d\u5f00\u5c0f\u56fe\u6807\uff0c\u56fd\u9645\u901a\u7528\u7684\u56fe\u5f62\u8bed\u8a00\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u7f51\u7ad9\u800c\u8a00\uff0c\u65e0\u8bba\u662f\u4f53\u9a8c\u8fd8\u662f\u8fa8\u8bc6\u5ea6\u90fd\u662f\u5fc5\u4e0d\u53ef\u7f3a\u7684\u3002<\/p>\n<p>\u76ee\u524d\u800c\u8a00\uff0c\u7edd\u5927\u591a\u6570\u7f51\u7ad9\u8fd8\u662f\u5904\u4e8e12\u50cf\u7d20\u5b57\u4f53\u65f6\u4ee3\uff0c\u8bbe\u8ba1\u5e08\u8bbe\u8ba1\u7684\u56fe\u6807\u90fd\u662f\u6309\u716716*16\u50cf\u7d20\u89c4\u683c\u8bbe\u8ba1\u7684\u504f\u591a\uff1b\u4e0d\u592a\u4e13\u4e1a\u7684\u8bbe\u8ba1\u5e08\u53ef\u80fd\u4f1a14~20\u50cf\u7d20\u4e4b\u95f4\u6447\u6446\u3002<\/p>\n<p>\u53cd\u6b63\u4e0d\u7ba1\u600e\u6837\uff0c\u6700\u540e\uff08\u52a0\u4e0asprite\u5de5\u5177\u76db\u884c\uff09\u6211\u4eec\u56fe\u5f62\u5728\u7f51\u9875\u4e2d\u7684\u5c3a\u5bf8\u57fa\u672c\u4e0a\u5c31\u662f<code>16px*16px<\/code>:<\/p>\n<div class=\"zxx_code\">\n<pre>.icon-hi {\n    display: inline-block;\n    width: 16px; height: 16px;\n}<\/pre>\n<\/div>\n<p>\u5f53\u7136\uff0c<code>17px*18px<\/code>\u4e5f\u662f\u5f88\u5e38\u89c1\u7684\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>.icon-hi {\n    display: inline-block;\n    width: 17px; height: 18px;\n}<\/pre>\n<\/div>\n<p>\u8fd9\u79cd\u4e00\u5c0f\u56fe\u6807\u771f\u5b9e\u5c3a\u5bf8\u6784\u5efaCSS\u4ee3\u7801\u7684\u65b9\u5f0f\u67093\u4e2a\u6bd4\u8f83\u5927\u7684\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u4e0e\u540e\u9762\u6587\u5b57\u7684\u5bf9\u9f50<\/li>\n<li>\u70b9\u51fb\u533a\u57df\u5927\u5c0f<\/li>\n<li>\u91cd\u590d\u5197\u4f59\u7684CSS\u4ee3\u7801<\/li>\n<\/ol>\n<p><strong>1. \u4e0e\u540e\u9762\u6587\u5b57\u7684\u5bf9\u9f50<\/strong><br \/>\n\u7531\u4e8e<code>vertical-align<\/code>\u5c5e\u6027\u7684\u517c\u5bb9\u6027\uff0c\u4ee5\u53ca<code>vertical-align:middle<\/code>\u5e76\u4e0d\u662f\u4e25\u683c\u610f\u4e49\u7684\u5782\u76f4\u5c45\u4e2d\uff0c\u56e0\u6b64\uff0c\u5c0f\u56fe\u6807+\u6587\u5b57\u7684\u5bf9\u9f50\uff0c\u57fa\u672c\u4e0a\u90fd\u8981\u9488\u5bf9\u4e0d\u540c\u6d4f\u89c8\u5668\u52a0\u4e2ahack\u8865\u4e01\uff1b\u5728\u52a0\u4e0a\uff0c\u5982\u679c\u4f60\u7684\u56fe\u6807\u5c3a\u5bf8\u4e00\u4f1a\u513f16\u50cf\u7d20\uff0c\u4e00\u4f1a\u513f18\u50cf\u7d20\uff0c\u663e\u7136\uff0c\u6ca1\u6cd5\u901a\u8fc7\u5168\u5c40\u4e00\u4e2a\u8bbe\u7f6e\u4f7f\u5f97\u6574\u7ad9\u7684\u5c0f\u56fe\u6807\u548c\u6587\u5b57\u90fd\u5bf9\u9f50\u826f\u597d\uff01<\/p>\n<p>\u4f8b\u5982\uff0c\u817e\u8baf\u5fae\u535a\u8fd9\u91cc\uff0c\u56fe\u6807\u5c31\u662f16\u50cf\u7d20\u5c3a\u5bf8\uff0c\u7136\u540e\uff0c\u4e00\u4e9b\u4e94\u82b1\u516b\u95e8\u7684\u5904\u7406\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-21_233724.png\" width=\"343\" height=\"402\" alt=\"\u817e\u8baf\u5fae\u535a\u56fe\u6807\u5904\u7406\" class=\"alignnone\" \/> <img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-21_233747.png\" width=\"307\" height=\"299\" alt=\"\u817e\u8baf\u5fae\u535a\u5c0f\u56fe\u6807\u5b9a\u4f4d\" class=\"alignnone\" \/><\/p>\n<p>\u5f88\u591a\u8865\u4e01\uff0c\u5f88\u591aCSS\u5904\u7406\uff0c\u91cc\u9762\u56fe\u6807\u4f7f\u7528\u4e86absolute\u7edd\u5bf9\u5b9a\u4f4d\uff0c\u8fd9\u5012\u662f\u5904\u7406\u517c\u5bb9\u633a\u4e0d\u9519\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\uff0c\u663e\u7136\u4e0d\u5177\u6709\u666e\u904d\u9002\u7528\u6027\u3002<\/p>\n<p><strong>2. \u70b9\u51fb\u533a\u57df\u5927\u5c0f<\/strong><br \/>\n\u6709\u65f6\u5019\uff0c\u6211\u4eec\u7684\u5c0f\u56fe\u6807\u76f4\u63a5\u5c31\u662f\u70b9\u51fb\u6309\u94ae\uff0c\u6b64\u65f6\uff0c\u5982\u679c\u4f60\u7684\u5c3a\u5bf8\u5c31\u662f16\u50cf\u7d20*16\u50cf\u7d20\uff0c\u4f1a\u4e0d\u4f1a\u70b9\u4e0d\u51c6\u7684\u6982\u7387\u5c31\u4e0a\u5347\u4e86\uff0c\u5982\u679c\u56fe\u6807\u662f20px*20px\u5462\uff1f<\/p>\n<p><strong>3. \u91cd\u590d\u5197\u4f59\u7684CSS\u4ee3\u7801<\/strong><br \/>\n\u5f53\u4e0b\u7c7b\u4f3c<a href=\"https:\/\/github.com\/Ensighten\/grunt-spritesmith\">grunt-spritesmith<\/a>\u7684\u5c0f\u56fe\u6807\u5408\u5e76\u5de5\u5177\u57fa\u672c\u6210\u4e86\u524d\u7aef\u56e2\u961f\u7684\u6807\u914d\uff0c\u800c\u6839\u636e\u6211\u7684\u89c2\u5bdf\uff0c\u57fa\u672c\u4e0a\uff0c\u5927\u5bb6\u90fd\u662f\u8bbe\u8ba1\u5e08\u7ed9\u7684\u56fe\u6807\u76f4\u63a5\u6254\u5230\u6587\u4ef6\u5939\u91cc\u9762\u8fdb\u884c\u5408\u5e76\uff0c\u4e8e\u662f\uff0c\u4ea7\u51fa\u7684\u4ee3\u7801\u57fa\u672c\u4e0a\u5c31\u662f<code>width<\/code>\/<code>height<\/code>\/<code>background-position<\/code>\u7684\u6a21\u5f0f\uff0c\u7136\u800c\uff0c\u53ef\u80fd\u91cc\u976270%\u5bbd\u9ad8\u90fd\u662f16\u50cf\u7d20\uff0c20%\u662f18\u50cf\u7d20\uff0c\u8fd8\u670910%\u662f\u5176\u4ed6\u5c0f\u5c3a\u5bf8\uff0c\u4e5f\u5c31\u662f\uff0c\u5176\u5b9e\u5f88\u591aCSS\u4ee3\u7801\u662f\u53ef\u4ee5\u5408\u5e76\u7684\uff0c\u7136\u800c\uff0c\u90fd\u6d6a\u8d39\u4e86\u3002<\/p>\n<p>\u5982\u4e0b\u751f\u6210less\u4ee3\u7801\u622a\u56fe\uff08\u6e90\u81ea\u771f\u5b9e\u9879\u76ee\uff09\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-21_235334.png\" width=\"555\" height=\"418\" alt=\"\u5de5\u5177\u751f\u6210\u56fe\u6807\u4ee3\u7801\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<p>\u4ee5\u4e0a\u8fd9\u4e9b\u95ee\u9898\u5b9e\u9645\u4e0a\u4e00\u4e2a\u5bf9\u7b56\u5c31\u53ef\u4ee5\u641e\u5b9a\uff0c\u5c31\u662f\u6240\u6709\u56fe\u6807\u7edf\u4e00\u6309\u716720px*20px\u7684\u6807\u51c6\u5904\u7406\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201801\/5bug1fix.jpg\" width=\"230\" height=\"173\" alt=\"5\u5927\u53d7\u635f 1\u4e2a\u5bf9\u7b56\" class=\"alignnone\" \/><\/p>\n<p>\u4f60\u60f3\u554a\uff0c\u6211\u4eec\u7f51\u9875\u6587\u5b57\u57fa\u7840\u9ad8\u5ea6\u662f20\u50cf\u7d20\uff0c\u56fe\u6807\u4e5f\u662f20\u50cf\u7d20\u9ad8\uff0c\u5929\u7136\u5bf9\u9f50\uff0c\u95ee\u98981\u89e3\u51b3\uff1b20*20\u7684\u70b9\u51fb\u533a\u57df\u5bf9\u5427\uff0c\u663e\u7136\u6bd416*16\u8981\u5927\uff0c\u95ee\u98982\u89e3\u51b3\uff1b\u6240\u6709\u56fe\u6807\u90fd\u662f20*20\u7684\u5c3a\u5bf8\u8303\u56f4\u5185\uff0c\u6240\u6709<code>width<\/code>\/<code>height<\/code>\u90fd\u53ef\u4ee5\u5408\u5e76\uff0c\u5927\u5927\u51cf\u5c11CSS\u4ee3\u7801\uff0c\u95ee\u98983\u4e5f\u641e\u5b9a\u4e86\uff01<\/p>\n<p>\u5982\u4e0b\u56feCSS\u751f\u6210\u6a21\u677f\u793a\u610f\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_222753.png\" width=\"620\" height=\"225\" alt=\"\u5c0f\u56fe\u6807\u751f\u6210\u6a21\u677f\" class=\"alignnone\" \/><\/p>\n<p><span class=\"s\">&#8212;&#8212;&#8212;&#8212;-\u4f4e\u8c03\u7684\u5206\u9694\u7ebf&#8212;&#8212;&#8212;&#8212;-<\/span><\/p>\n<p>\u7136\u800c\uff0c\u5b9e\u9645\u4e0a\u7684\u5904\u7406\u8981\u6bd4\u4e0a\u9762\u8bf4\u7684\u590d\u6742\u548c\u6df1\u5965\u7684\u591a\uff01<\/p>\n<p><strong>\u56fe\u6807\u548c\u6587\u5b57\u5929\u7136\u5bf9\u9f50<\/strong><br \/>\n\u6309\u7167\u6211\u4eec\u76f4\u89c2\u7684\u8ba4\u77e5\uff0c\u4e24\u4e2a\u5143\u7d20\u90fd\u662f20\u50cf\u7d20\u9ad8\uff0c\u90fd\u5728\u81ea\u5df1\u7684\u5782\u76f4\u8303\u56f4\u5185\u5c45\u4e2d\uff0c\u90a3\u8fd9\u4e24\u4e2a\u5143\u7d20\u5e94\u8be5\u662f\u5728\u4e00\u4e2a\u6c34\u5e73\u7ebf\u4e0a\u7684\u3002\u5b9e\u9645\u4e0a\u771f\u7684\u662f\u8fd9\u6837\u5417\uff1f\u662f\u7684\uff0c\u4f46\u662f\uff0c\u6ce8\u610f\u8fd9\u91cc\u7684\u4f46\u662f\uff0c\u662f\u6709\u6761\u4ef6\u9650\u5236\u7684\uff01<\/p>\n<p>\u5728\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2015\/08\/css-deep-understand-vertical-align-and-line-height\/\">CSS\u6df1\u5165\u7406\u89e3vertical-align\u548cline-height\u7684\u57fa\u53cb\u5173\u7cfb<\/a>\u201d\u4e00\u6587\u4e2d\uff0c\u5176\u4e2d\u5c31\u5df2\u7ecf\u63d0\u53ca\u8fc7\uff1a<\/p>\n<blockquote>\n<p>The baseline of an \u2018inline-block\u2019 is the baseline of its last line box in the normal flow, unless it has either no in-flow line boxes or if its \u2018overflow\u2019 property has a computed value other than \u2018visible\u2019, in which case the baseline is the bottom margin edge.<\/p>\n<\/blockquote>\n<p>\u4e2d\u6587\u76f4\u8bd1\u5c31\u662f\uff1a<\/p>\n<blockquote>\n<p>\u2018inline-block\u2019\u7684\u57fa\u7ebf\u662f\u6b63\u5e38\u6d41\u4e2d\u6700\u540e\u4e00\u4e2aline box\u7684\u57fa\u7ebf, \u9664\u975e\uff0c\u8fd9\u4e2aline box\u91cc\u9762\u65e2\u6ca1\u6709line boxes\u6216\u8005\u672c\u8eab&#8217;overflow&#8217;\u5c5e\u6027\u7684\u8ba1\u7b97\u503c\u800c\u4e0d\u662f&#8217;visible&#8217;, \u8fd9\u79cd\u60c5\u51b5\u4e0b\u57fa\u7ebf\u662fmargin\u5e95\u8fb9\u7f18\u3002<\/p>\n<\/blockquote>\n<p>\u7ffb\u8bd1\u6210\u767d\u8bdd\u5c31\u662f\uff1a<\/p>\n<blockquote><p>\u5982\u679cinline-block\u6c34\u5e73\u5143\u7d20&#8217;overflow&#8217;\u4e0d\u662f&#8217;visible&#8217;\uff0c\u6216\u8005\u91cc\u9762\u6ca1\u6709\u5185\u8054\u5143\u7d20\uff08\u56fe\u7247\u3001\u6587\u5b57\u4e4b\u7c7b\uff09\uff0c\u5219\u6574\u4e2a\u5143\u7d20\u7684\u57fa\u7ebf\u5c31\u662f\u81ea\u8eab\u7684\u4e0b\u8fb9\u7f18\uff1b\u5426\u5219\uff0c\u57fa\u7ebf\u5c31\u662f\u91cc\u9762\u6700\u540e\u4e00\u884c\u56fe\u6587\u5143\u7d20\u7684\u57fa\u7ebf\uff08<img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/79.gif\" align=\"absmiddle\">\u8fd9\u662f\u6211\u4eec\u9700\u8981\u7684\uff09\u3002<\/p><\/blockquote>\n<p>\u6709\u70b9\u4e0d\u592a\u7406\u89e3\uff1f\u6ca1\u5173\u7cfb\uff0c\u4e0d\u662f\u672c\u6587\u7684\u91cd\u70b9\u3002\u4f60\u53ea\u8981\u77e5\u9053\uff0c\u6211\u4eec\u8981\u60f320\u50cf\u7d20\u9ad8\u7684\u56fe\u6807\u548c20\u50cf\u7d20\u9ad8\u7684\u6587\u5b57\u5929\u7136\u5bf9\u9f50\u663e\u793a\uff0c\u9700\u8981\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u6761\u4ef6\uff1a<\/p>\n<ol>\n<li><code>overflow<\/code>\u5c5e\u6027\u503c\u9664\u4e86<code>visible<\/code>\u90fd\u4e0d\u884c\uff1b<\/li>\n<li>\u91cc\u9762\u9700\u8981\u6709\u4e0d\u52a0\u4fee\u9970\u7684\u6587\u672c\u5185\u5bb9\uff1b<\/li>\n<\/ol>\n<p>\u6240\u4ee5\uff0c\u4e0b\u9762\u4e24\u79cd\u60c5\u51b5\u90fd\u662f\u6dd8\u6c70\u7684\uff01<\/p>\n<div class=\"zxx_code\">\n<pre>.icon {\n    display: inline-block;\n    width: 20px; height: 20px;\n    background: ...\n    <del style=\"color:#cd0000;\">overflow: hidden;<\/del>     <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/37.gif\" align=\"absmiddle\">\n}<\/pre>\n<\/div>\n<div class=\"zxx_code\">\n<pre>\n<del style=\"color:#cd0000;\">&lt;i class=\"icon\"&gt;&lt;\/i&gt;<\/del>     <img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/37.gif\" align=\"absmiddle\">\n\n.icon {\n    display: inline-block;\n    width: 20px; height: 20px;\n    background: ...\n}<\/pre>\n<\/div>\n<p>\u7b2c\u4e00\u79cd\u60c5\u51b5\u662f<code>overflow:hidden<\/code>\u62d6\u540e\u817f\u4e86\uff1b\u7b2c\u4e8c\u79cd\u60c5\u51b5\u662f<code>&lt;i&gt;<\/code>\u6807\u7b7e\u91cc\u9762\u662f\u7a7a\u5927\u5c41\uff0c\u57fa\u7ebf\u8fd8\u662f\u5143\u7d20\u5e95\u8fb9\u7f18\u800c\u4e0d\u662f\u91cc\u9762\u7684\u6587\u5b57\uff08\u5982\u679c\u6709\uff09\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u8981\u60f3\u5b9e\u73b0\u5c0f\u56fe\u6807\u5929\u7136\u5bf9\u9f50\uff0c\u6211\u4eec\u4e0d\u80fd\u6709<code>overflow:hidden<\/code>\u540c\u65f6HTML\u6807\u7b7e\u5185\u90e8\u6709\u6587\u672c\u5185\u5bb9\uff0c\u6211\u9760\uff0c\u597d\u591a\u9650\u5236\uff0c\u8c8c\u4f3c\u5f88\u70e6\u554a\uff0c\u7136\u800c\uff0c\u7ecf\u8fc7\u672c\u4eba\u7684\u5b9e\u8df5\uff0c\u662f\u53ef\u4ee5\u6709CSS\u4ee3\u7801\u6bb5\u6ee1\u8db3\u5404\u79cd\u573a\u666f\u7684\u5bf9\u9f50\u6548\u679c\u7684\uff0c\u5982\u4e0b\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>.icon { \n    display: inline-block; \n    width:20px; height:20px; \n    background: ...; \n    white-space:nowrap; \n    letter-spacing: -1em; \n    text-indent: -99em; \n    color: transparent;\n    <span style=\"color:green;\">\/* IE7 *\/<\/span>\n    *text-indent: 0;\n    *zoom: expression( this.runtimeStyle['zoom'] = '1', this.innerHTML = '\\3000');\n}\n.icon:before {\n    <span style=\"color:green;\">\/* \u4f2a\u5143\u7d20\u63d2\u5165\u7a7a\u683c\u6587\u672c *\/<\/span>\n    content: '\\3000'; \n}<\/pre>\n<\/div>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201603\/icon-text-vertical-align.html\" target=\"_blank\">\u5c0f\u56fe\u6807\u6587\u5b57\u5bf9\u9f50\u7684\u7ec8\u6781\u89e3\u51b3\u65b9\u6848demo<\/a><\/p>\n<p>\u7ed3\u679c\uff0c\u65e0\u8bba\u662f\u7a7a\u6807\u7b7eHTML\uff0c\u8fd8\u662f\u5185\u7f6e\u53ef\u8bbf\u95ee\u6027\u63d0\u793a\u6587\u5b57\u7684HTML\uff0c\u90fd\u662f\u5bf9\u9f50\u6548\u679c\u68d2\u68d2\u54d2\uff01<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;i class=\"icon\"&gt;&lt;\/i&gt;\n\n&lt;a href=\"javascript:\" class=\"icon\"&gt;\u5220\u9664&lt;\/a&gt;<\/pre>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_222858.png\" width=\"379\" height=\"279\" alt=\"\u56fe\u6807\u548c\u6587\u5b57\u7684\u5bf9\u9f50\u6548\u679c\" class=\"alignnone\" \/><\/p>\n<p>\u800c\u4e14\uff0c\u5c31\u7b97\u6587\u5b57\u7684\u5b57\u53f7\u5927\u5c0f\u53d8\u5316\uff0c\u4f8b\u5982<code>14px<\/code>\u2192<code>16px<\/code>\u56fe\u6807\u548c\u6587\u5b57\u4e5f\u662f\u5bf9\u9f50\u826f\u597d\u7684\uff0c\u56e0\u4e3a\uff0c\u5bf9\u9f50\u7684\u672c\u8d28\u662f\u56fe\u6807\u5143\u7d20\u91cc\u9762\u7684\u6587\u5b57\u548c\u540e\u9762\u7684\u6587\u5b57\u5bf9\u9f50\uff0c\u6587\u5b57\u548c\u6587\u5b57\u5bf9\u9f50\uff0c\u81ea\u7136\u662f\u5929\u7136\u5bf9\u9f50\u7684\uff0c\u5343\u53e4\u96be\u9898\u5c31\u8fd9\u4e48\u6709\u4e86\u89e3\u51b3\u65b9\u6848\uff0c\u4ee5\u524d\u7684CSS hack\u554a\uff0c\u4ec0\u4e48<code>vertical-align<\/code>\u63a7\u5236\uff0c\u8fd8\u6709<code>margin<\/code>\u8d1f\u503c\u504f\u79fb\u90fd\u662f\u6d6e\u4e91\u4e86\uff01<img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/181.gif\" align=\"absmiddle\"><\/p>\n<p><strong>\u56fe\u680720*20\u5c3a\u5bf8\u6269\u5c55grunt\u5de5\u5177<\/strong><br \/>\n\u8bbe\u8ba1\u5e08\u8bbe\u8ba1\u7684\u56fe\u6807\u90fd\u662f16px~20px\u4e0d\u7b49\uff0cCSS\u4ee3\u7801\u90fd\u662fGrunt\u5de5\u5177\u751f\u6210\u7684\uff0c\u6211\u4eec\u5f88\u96be\u7b80\u5355\u63a7\u5236\u8ba9\u6240\u6709\u56fe\u6807\u90fd\u662f20*20\u7684\u533a\u57df\u5927\u5c0f\u3002\u9664\u975e\uff0c\u6211\u4eec\u5bf9\u6240\u6709\u7684\u5c0f\u56fe\u6807\u5728\u5bfc\u51fa\u7684\u65f6\u5019\uff0c\u624b\u52a8\u6269\u5c55\u753b\u5e03\u523020px*20px\u3002<\/p>\n<p>\u4eb2\uff0c\u4ec0\u4e48\u5e74\u4ee3\u4e86\uff0c\u53c8\u4e0d\u662f\u641e\u827a\u672f\u54c1\uff0c\u624b\u5de5\u52b3\u4f5c\u5e74\u4ee3\u8fc7\u53bb\u4e86\uff0c\u76f4\u63a5\u4e0a\u5de5\u5177\u3002<\/p>\n<p>\u6211\u57fa\u4e8eGM\u641e\u4e86\u4e2a20\u50cf\u7d20\u4ee5\u4e0b\u5c0f\u56fe\u6807\u81ea\u52a8\u6269\u5c55\u4e3a20\u50cf\u7d20\u5927\u5c0f\u56fe\u7247\u7684Grunt\u5de5\u5177\uff1a<a href=\"https:\/\/github.com\/zhangxinxu\/canvasExpand\" target=\"_blank\">https:\/\/github.com\/zhangxinxu\/canvasExpand<\/a><\/p>\n<p>\u7cbe\u529b\u6709\u9650\uff0c\u8fd9\u4e2a\u5c0f\u9879\u76ee\u8fd8\u6ca1\u7ec6\u6574\u5c31\u6254\u4e0a\u53bb\u4e86\uff0c\u53ef\u4ee5\u770b\u5230\uff0c\u5f88\u591a\u6a21\u677f\u751f\u6210\u7684\u6587\u5b57\u6211\u8fd8\u6ca1\u6765\u5f97\u53ca\u6539\u3002<\/p>\n<p>window\u7528\u6237\u8bb0\u5f97\u8981\u5b89\u88c5ImageMagick.exe\uff0c\u5b89\u88c5\u65f6\u5019\u8bb0\u5f97\u52fe\u4e0a\u90a3\u4e2a\u5168\u5c40\u53d8\u91cf\u4ec0\u4e48\u4e1c\u897f\u7684\u3002<\/p>\n<p>\u5982\u679c\u6709\u4ec0\u4e48\u95ee\u9898\uff0c\u6b22\u8fce\u2026\u2026\u4e0d\u8981\u6765\u6253\u6270\u6211\uff0c\u5fd9\uff0c\u81ea\u5df1\u60f3\u529e\u6cd5\uff0c\u4e48\u4e48\u54d2~~<\/p>\n<p><strong>\u56fe\u6807\u7684\u91cd\u5fc3\u50cf\u7d20\u7ea7\u5904\u7406<\/strong><br 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loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_002203.png\" width=\"518\" height=\"548\" alt=\"\u7ec4\u4ef6\u7684\u9ad8\u5ea6\" class=\"alignnone\" \/><\/p>\n<p>\u4e0a\u56fe\u622a\u81ea\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/2016\/01\/development-of-ui-components-based-on-native-html\/\">\u57fa\u4e8e\u539f\u751fHTML\u7684UI\u7ec4\u4ef6\u5f00\u53d1<\/a>\u201d\u4e00\u6587\u90a3\u4e2a\u5c55\u793a\u524d\u7aef\u5206\u79bb\u7684\u4f8b\u5b50\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201511\/form-use-mpqq.html\" target=\"_blank\">QQ\u516c\u4f17\u5e73\u53f0UI\u7ec4\u4ef6\u4e0b\u7684\u524d\u7aef\u5206\u79bbdemo<\/a><\/p>\n<p>\u7531\u4e8e\u6211\u4eec\u7684\u57fa\u51c6\u6587\u5b57\u9ad8\u5ea6\u662f20\u50cf\u7d20\uff0c\u56e0\u6b64\uff0c\u5de6\u8fb9\u6587\u5b57\u8ddd\u79bb\u9876\u90e8\u7684\u95f4\u8ddd\uff0c\u5c31\u662f\u6807\u51c6\u768410\u50cf\u7d20\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_003007.png\" width=\"494\" height=\"204\" alt=\"\u6587\u5b57\u6807\u9898\u7684\u4e0a\u8fb9\u8ddd\u5927\u5c0f\" class=\"alignnone\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_003117.png\" width=\"234\" height=\"82\" alt=\"\u95f4\u8ddd\u5927\u5c0f\" class=\"alignnone\" \/><\/p>\n<p>\u8fd9\u5c31\u4f7f\u5f97\u6211\u4eec\u7f51\u9875\u4e2d\u65e0\u8bba\u662f\u5927\u6a21\u5757\u4e4b\u95f4\u7684\u95f4\u8ddd\uff0c\u8fd8\u662f\u5c0f\u7684\u6587\u5b57\u548c\u7a7a\u95f4\u4e4b\u95f4\u7684\u95f4\u8ddd\uff1b\u65e0\u8bba\u662f\u6c34\u5e73\u7684\u95f4\u8ddd\u8fd8\u662f\u5782\u76f4\u7684\u95f4\u8ddd\uff0c\u5168\u90e8\u90fd\u662f\u6807\u51c6\u76845\u50cf\u7d20\u7684\u500d\u6570\u3002\u4ece\u800c\u8ba9\u6211\u4eec\u6240\u6709\u7684\u5927\u5c0f\u6a21\u5757\u7684\u5b9e\u9645\u9ad8\u5ea6\u90fd\u662f10\u7684\u500d\u6570(padding-top + line-height*\u884c\u6570 + padding-bottom)\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u4eec\u4ee520\u50cf\u7d20\u4e3a\u57fa\u51c6\u8fdb\u884c\u5e03\u5c40\u548cUI\u7ec4\u4ef6\u8bbe\u8ba1\uff0c\u4f7f\u5f97\u6211\u4eec\u7684<strong>\u7f51\u9875\u95f4\u8ddd\u6807\u51c6\u5316<\/strong>\u4e86\uff0c\u65e0\u5f62\u4e4b\u4e2d\u4f1a\u8ba9\u6211\u4eec\u9875\u9762\u7684<strong>\u6392\u7248\u66f4\u4e13\u4e1a<\/strong>\uff0c\u540c\u65f6\u4e5f\u8ba9<a href=\"https:\/\/github.com\/zhangxinxu\/zxx.lib.css\" target=\"_blank\">zxx.lib.css<\/a>\u7684\u5229\u7528\u7387\u63d0\u5347\u4e86\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_003629.png\" width=\"270\" height=\"116\" class=\"alignnone\" \/><\/p>\n<p>\u5982\u679c\u6211\u4eec\u8fdb\u4e00\u6b65\u6df1\u7a76<del datetime=\"2016-03-21T13:07:39+00:00\">\u6309\u94ae<\/del>\u6216\u8005\u8f93\u5165\u6846\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u4f60\u4f1a\u53d1\u73b0\uff0c\u5176CSS\u5b9e\u73b0\u672c\u8eab\u5c31\u662f\u6309\u716720\u50cf\u7d20\u4e3a\u57fa\u51c6\u7684\u7b56\u7565\u8fdb\u884c\u5b9e\u73b0\u7684\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201603\/2016-03-22_004140.png\" width=\"457\" height=\"216\" alt=\"\u8f93\u5165\u684620\u50cf\u7d20\u57fa\u51c6\u5b9e\u73b0\" class=\"alignnone\" \/><\/p>\n<p><span class=\"s\">\/\/zxx: 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