css样式重置

/*reset*/
body,dl,dd,ul,ol,h1,h2,h3,h4,h5,h6,p,form{margin:0}
body,button,input,select,textarea{font:12px/1.5 tahoma,'\5b8b\4f53',sans-serif}
h1,h2,h3,h4,h5,h6{font-size:100%}
em,b{font-style:normal}
a{text-decoration:none}
a:hover{text-decoration:underline}
img{border:0;display:block;}
button,input,select,textarea{font-size:100%;outline:none}
table{border-collapse:collapse;border-spacing:0}
td,th,ul,ol,li{padding:0;list-style-type:none;}