css重置reset.css

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, sans-serif;
}
h1, h2, h3, h4, h5, h6 { font-size: 100%; }
address, cite, dfn, em, var { font-style: normal; }
code, kbd, pre, samp { font-family: courier new, 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: none; }
button, input, select, textarea { font-size: 100%; }

table { border-collapse: collapse; border-spacing: 0; }