/* reset */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,p,blockquote,th,td{margin:0;padding:0;font-family:'宋体';}
div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,a,span {overflow:hidden;}
table{border-collapse:collapse;border-spacing:0; font-size:12px;}
td { line-height:18px; height:30px; vertical-align:top;}
fieldset,img{border:0}
address,caption,cite,code,dfn,em,th,var{font-style:normal;font-weight:normal}
ol,ul,dl {list-style:none}
h1,h2,h3,h4,h5,h6{font-size:100%}
/*通用*/
css的继承关系（.ts a{...}）
.ts a{ width:100px;line-height:34px; display:block;}
.ts a:link,a:visited{color:#000;background:#9CB3C1;text-decoration: none;}
.ts a:hover,a:active{ color:#FFFF00;background:#000;}
<div sty ......
