CSS——样式初始化

腾讯：

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/1.5tahoma, 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; }