记录重置css样式

body, dl, dd, h1, h2, h3, h4, h5, h6, p, form{margin:0;}
ol,ul{margin:0; padding:0;}
table { border-collapse: collapse; border-spacing: 0; }
caption, th, td { font-weight: normal; text-align: left; }
a img, iframe { border: medium none; }
ol, ul {padding-left:0; list-style-type:none;} 
input, textarea, select, button { font-family: inherit; font-size: 100%; }
body { font-family: "宋体"; font-size: 12px;}
a img{border:0;}
img{border:0;}
.wrap{width:1000px;margin:0 auto;text-align:left;position:relative}