基础css样式

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, 5b8b4f53, 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:0;}
button, input, select, textarea {font-size:100%;}
table {border-collapse:collapse;border-spacing:0;}