css初始化

     /*qq*/
     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*/
     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*/
     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 /1.5 tahoma, 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*/
     html {overflow-y:scroll;}
     body {margin:0; padding:29px 0 0; 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;}
      
     /*雅虎*/
     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; }