css reset

　　新浪：

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td {margin:0;padding:0;}
table{border-collapse:collapse; border-spacing:0;}
fieldset,img{border:0;}
address,caption,cite,code,dfn,em,th,var,i{font-style:normal;font-weight:normal;}
ol,ul{list-style:none;}caption,th{text-align:left;}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}
q:before,q:after{content:'';}
a:focus{outline-style:none;}
abbr,acronym{border:0;font-variant:normal;}
sup{vertical-align:text-top;}
sub{vertical-align:text-bottom;}
input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;*font-size:100%; }
textarea{resize:none}
input::-ms-clear { display: none; }
body{font:12px/1.3 'Arial','Microsoft YaHei'; _font-family:simsun; overflow-x:hidden;color:#333;}

 

 

 

百度：

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}
h1,h2,h3,h4,h5,h6{font-size:100%}
address,cite,dfn,em,var{font-style:normal}
code,kbd,pre,samp{font-family:arial,courier new,courier,"\5b8b\4f53",monospace}
small{font-size:12px}
ul,ol,li{list-style:none}
sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}
sup{top:-.5em}sub{bottom:-.25em}
legend{color:#000}
fieldset,img{border:0}
button,input,select,textarea{font-size:100%}
table{border-collapse:collapse;border-spacing:0}
section,header,nav,footer,article{display:block}