css样式初始化

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;
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;}  
/* css common */ 
.clearfix:after {content: "."; display: block; height:0; clear:both; visibility: hidden;} 
.clearfix { *zoom:1; }