CSS初始化示例代码/* css reset www.admin10000.com */body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td {
    margin:0; padding:0; }body {
    background:#fff; color:#555; font-size:14px; font-family: Verdana, Arial, Helvetica, sans-serif; }td,th,caption {
    font-size:14px; }h1, h2, h3, h4, h5, h6 {
    font-weight:normal; font-size:100%; }address, caption, cite, code, dfn, em, strong, th, var {
    font-style:normal; font-weight:normal;}a {
    color:#555; text-decoration:none; }a:hover {
    text-decoration:underline; }img {
    border:none; }ol,ul,li {
    list-style:none; }input, textarea, select, button {
    font:14px Verdana,Helvetica,Arial,sans-serif; }table {
    border-collapse:collapse; }html {
   overflow-y: scroll;} /* css common */.clearfix:after {
   content: "."; display: block; height:0; clear:both; visibility: hidden;}.clearfix {
    *zoom:1; }

 二、第二种

/* Eric Meyer's Reset CSS v2.0 - http://cssreset.com */html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{
   border:0;font-size:100%;font:inherit;vertical-align:baseline;margin:0;padding:0}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{
   display:block}body{
   line-height:1}ol,ul{
   list-style:none}blockquote,q{
   quotes:none}blockquote:before,blockquote:after,q:before,q:after{
   content:none}table{
   border-collapse:collapse;border-spacing:0}

三、

/** * Eric Meyer's Reset CSS v2.0 (http://meyerweb.com/eric/tools/css/reset/) * http://cssreset.com */html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, legend,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary,time, mark, audio, video {
       margin: 0;    padding: 0;    border: 0;    font-size: 100%;    font: inherit;    vertical-align: baseline;}/* HTML5 display-role reset for older browsers */article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
       display: block;}body {
       line-height: 1;}ol, ul {
       list-style: none;}blockquote, q {
       quotes: none;}blockquote:before, blockquote:after,q:before, q:after {
       content: '';    content: none;}table {
       border-collapse: collapse;    border-spacing: 0;}