初始化css

通用初始化样式

body{ margin: 0;padding: 0;font-family: "微软雅黑";overflow: hidden;}
body,html{-webkit-text-size-adjust: none;width: 100%;height: 100%;}
*{text-decoration: none;list-style: none;}
  img{border: 0px;}
  ul,li,dl,dd,dt,p,ol,h1,h2,h3,h4,h5{font-size: 12px;font-weight: 100;padding: 0;margin: 0;}
  .wrap{margin: 0 auto;}
  .fl{float: left;}
  .fr{float: right;}
  .index{overflow: hidden;}
 .clr{clear:both; height:0px; width:100%; font-size:1px; line-height:0px; visibility:hidden; overflow:hidden;}
 .pointer{cursor:pointer;}
 a,input,button{ outline:none; }
 ::-moz-focus-inner{border:0px;}
 /*a:link {color:#0f0;text-decoration:none;} 
 a:visited {color: #FFFF00; text-decoration:none;} 
 a:hover {color: #00FF00; text-decoration:underline;} 
 a:active {color: #0000FF; text-decoration:underline;}*/
 a{color: #000;}
 .wrapper{clear: both;width: 100%;}
 table { border-collapse:collapse; }
 word-break:break-all /*文字换行*/
 /*white-space:nowrap 文字不换行*/

 /*默认滚动条样式修改ie9 google Firefox 等高版本浏览器有效*/
 /*::selection {background: #D03333;color: white;text-shadow: none;}
 ::-webkit-scrollbar-track-piece{width:10px;background-color:#f2f2f2}
 ::-webkit-scrollbar{width:10px;height:6px}
 ::-webkit-scrollbar-thumb{height:50px;background-color:rgba(0,0,0,.3);}
 ::-webkit-scrollbar-thumb:hover{background:#cc0000}*/


 /*渐变*/
 /*background-image: -moz-linear-gradient(top, #8fa1ff, #3757fa);
 background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #ff4f02), color-stop(1, #8f2c00)); Saf4+, Chrome 
 filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#c6ff00', endColorstr='#538300', GradientType='0'); IE*/

 另一种通用化样式

 /* CSS Document */
 html, body, div, span, object, iframe,h1, h2, 
 h3, h4, h5, h6, p, blockquote, pre,abbr, address, cite, code,del, dfn, 
 em, img, ins,kbd, q, samp,small, strong, sub, sup, var,b, i,dl, dt, dd, 
 ol, ul, li,fieldset, form, label, legend,table, caption, tbody, 
 tfoot,thead,tr, th, td,article, aside, canvas, details, figcaption, 
 figure, footer, header, hgroup, menu, nav, section, summary,time, mark, 
 audio, video {
     margin:0;
     padding:0;
     border:0;
     outline:0;
     font-size:100%;
     vertical-align:baseline;
     background:transparent;
     outline-style:none;/*FF*/ 
 }

 body {
     line-height:1;
 }

 a{
     margin:0;
     padding:0;
     border:0;
     font-size:100%;
     vertical-align:baseline;
     background:transparent;
 }
 a:hover,a:focus{
     text-decoration:none;
     bblr:expression(this.onFocus=this.blur());/*IE*/
     outline-style:none;/*FF*/ 
     }
 table {
     border-collapse:collapse;
     border-spacing:0;
 }
 input, select {
     vertical-align:middle;
 }

 /*css为clearfix，清除浮动*/
 .clearfix::before,
 .clearfix::after{
     content: "";
     height: 0;
     line-height: 0;
     display: block;
     visibility: hidden;
     clear: both;
 }
 .clearfix:after{clear:both;} 
 .clearfix{ 
     *zoom:1;/*IE/7/6*/
 }

雅虎工程师提供的CSS初始化示例代码

 body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td { margin:0; padding:0; }
 body { background:#fff; color:#555; font-size:14px; font-family: Verdana, Arial, Helvetica, sans-serif; }
 td,th,caption { font-size:14px; }
 h1, h2, h3, h4, h5, h6 { font-weight:normal; font-size:100%; }
 address, caption, cite, code, dfn, em, strong, th, var { font-style:normal; font-weight:normal;}
 a { color:#555; text-decoration:none; }
 a:hover { text-decoration:underline; }
 img { border:none; }
 ol,ul,li { list-style:none; }
 input, textarea, select, button { font:14px Verdana,Helvetica,Arial,sans-serif; }
 table { border-collapse:collapse; }
 html {overflow-y: scroll;} 
 .clearfix:after {content: "."; display: block; height:0; clear:both; visibility: hidden;}
 .clearfix { *zoom:1; }

腾讯官网 样式初始化

 body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{margin:0;padding:0} 
 body{font:12px"宋体","Arial Narrow",HELVETICA;background:#fff;-webkit-text-size-adjust:100%;} 
 a{color:#2d374b;text-decoration:none} 
 a:hover{color:#cd0200;text-decoration:underline} 
 em{font-style:normal} 
 li{list-style:none} 
 img{border:0;vertical-align:middle} 
 table{border-collapse:collapse;border-spacing:0} 
 p{word-wrap:break-word} 

新浪官网 样式初始化

 body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{margin:0;padding:0;border:0;} 
 body{background:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow";} 

 ul,ol{list-style-type:none;} 
 select,input,img,select{vertical-align:middle;} 

 a{text-decoration:none;} 
 a:link{color:#009;} 
 a:visited{color:#800080;} 
 a:hover,a:active,a:focus{color:#c00;text-decoration:underline;} 

淘宝官网 样式初始化

   body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0;          padding:0; } 
   body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; } 
   h1, h2, h3, h4, h5, h6{ font-size:100%; } 
   address, cite, dfn, em, var { font-style:normal; } 
 code, kbd, pre, samp { font-family:couriernew, courier, monospace; } 
 small{ font-size:12px; } 
 ul, ol { list-style:none; } 
 a { text-decoration:none; } 
 a:hover { text-decoration:underline; } 
 sup { vertical-align:text-top; } 
 sub{ vertical-align:text-bottom; } 
 legend { color:#000; } 
 fieldset, img { border:0; } 
 button, input, select, textarea { font-size:100%; } 
 table { border-collapse:collapse; border-spacing:0; } 

网易官网 样式初始化

 html {overflow-y:scroll;} 
 body {margin:0; padding:29px00; font:12px"\5B8B\4F53",sans-serif;background:#ffffff;} 
 div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,p{padding:0; margin:0;} 
 table,td,tr,th{font-size:12px;} 
 li{list-style-type:none;} 
 img{vertical-align:top;border:0;} 
 ol,ul {list-style:none;} 
 h1,h2,h3,h4,h5,h6{font-size:12px; font-weight:normal;} 
 address,cite,code,em,th {font-weight:normal; font-style:normal;} 

下面顺便给出admin10000.com 的html模板，用于每次新开发页面使用。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml" lang="zh-cn">
    <head>
  　<title>网站标题 - Admin10000.com </title>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
      <meta http-equiv="Content-Language" content="zh-CN" />
      <meta name="Author" content="网页作者" /> 
      <meta name="Copyright" content="网站版权" /> 
      <meta name="keywords" content="网站关键字" />
      <meta name="description" content="网站描述" />
      <link rel="Shortcut Icon" href="网站.ico图标路径" />
      <link type="text/css" rel="stylesheet" href="CSS文件路径" />
      <script type="text/javascript" src="JS文件路径"></script>
  </head>
  <body>

  </body>
</html>