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一、css reset
/* reset */
html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu{margin:0;padding:0;}header,footer,section,article,aside,nav,hgroup,address,figure,figcaption,menu,details{display:block;}table{border-collapse:collapse;border-spacing:0;}caption,th{text-align:left;font-weight:normal;}html,body,fieldset,img,iframe,abbr{border:0;}i,cite,em,var,address,dfn{font-style:normal;}[hidefocus],summary{outline:0;}li{list-style:none;}h1,h2,h3,h4,h5,h6,small{font-size:100%;}sup,sub{font-size:83%;}pre,code,kbd,samp{font-family:inherit;}q:before,q:after{content:none;}textarea{overflow:auto;resize:none;}label,summary{cursor:default;}a,button{cursor:pointer;}h1,h2,h3,h4,h5,h6,em,strong,b{font-weight:bold;}del,ins,u,s,a,a:hover{text-decoration:none;}body,textarea,input,button,select,keygen,legend{font:12px/1.14 arial,\5b8b\4f53;color:#333;outline:0;}body{background:#fff;}a,a:hover{color:#333;}/* function */
.f-cb:after,.f-cbli li:after{display:block;clear:both;visibility:hidden;height:0;overflow:hidden;content:".";}.f-cb,.f-cbli li{zoom:1;}.f-ib{display:inline-block;*display:inline;*zoom:1;}.f-dn{display:none;}.f-db{display:block;}.f-fl{float:left;}.f-fr{float:right;}.f-pr{position:relative;}.f-prz{position:relative;zoom:1;}.f-oh{overflow:hidden;}.f-ff0{font-family:arial,\5b8b\4f53;}.f-ff1{font-family:"Microsoft YaHei",\5fae\8f6f\96c5\9ed1,arial,\5b8b\4f53;}.f-fs1{font-size:12px;}.f-fs2{font-size:14px;}.f-fwn{font-weight:normal;}.f-fwb{font-weight:bold;}.f-tal{text-align:left;}.f-tac{text-align:center;}.f-tar{text-align:right;}.f-taj{text-align:justify;text-justify:inter-ideograph;}.f-vam,.f-vama *{vertical-align:middle;}.f-wsn{word-wrap:normal;white-space:nowrap;}.f-pre{overflow:hidden;text-align:left;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;}.f-wwb{white-space:normal;word-wrap:break-word;word-break:break-all;}.f-ti{overflow:hidden;text-indent:-30000px;}.f-ti2{text-indent:2em;}.f-lhn{line-height:normal;}.f-tdu,.f-tdu:hover{text-decoration:underline;}.f-tdn,.f-tdn:hover{text-decoration:none;}.f-toe{overflow:hidden;word-wrap:normal;white-space:nowrap;text-overflow:ellipsis;}.f-csp{cursor:pointer;}.f-csd{cursor:default;}.f-csh{cursor:help;}.f-csm{cursor:move;}.f-usn{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;-o-user-select:none;user-select:none;}/* media */
/* 横屏 */@media screen and (orientation:landscape){ }/* 竖屏 */@media screen and (orientation:portrait){ }/* 窗口宽度<960,设计宽度=768 */@media screen and (max-width:959px){ }/* 窗口宽度<768,设计宽度=640 */@media screen and (max-width:767px){ }/* 窗口宽度<640,设计宽度=480 */@media screen and (max-width:639px){ }/* 窗口宽度<480,设计宽度=320 */@media screen and (max-width:479px){ }/* windows UI 贴靠 */@media screen and (-ms-view-state:snapped){ }/* 打印 */@media print{ }/* animation */
/* 淡入 */.a-fadein{-webkit-animation-name:fadein;-moz-animation-name:fadein;-ms-animation-name:fadein;animation-name:fadein;}/* define *//* 淡入 */@-webkit-keyframes fadein{ 0%{opacity:0;} 100%{opacity:1;}}@-moz-keyframes fadein{ 0%{opacity:0;} 100%{opacity:1;}}@-ms-keyframes fadein{ 0%{opacity:0;} 100%{opacity:1;}}@keyframes fadein{ 0%{opacity:0;} 100%{opacity:1;}}<!DOCTYPE html>
<html><head><meta charset="utf-8"/><title>NEC：更好的CSS方案</title><meta name="keywords" content=""/><meta name="description" content=""/><meta name="viewport" content="width=device-width"/><link rel="stylesheet" href="css/style.css"/><link rel="shortcut icon" href="img/favicon.ico"/><link rel="apple-touch-icon" href="img/touchicon.png"/></head><body><div class="g-doc"> <div class="g-hd"> </div> <div class="g-bd"> <div class="g-mn"> </div> <div class="g-sd"> </div> </div> <div class="g-ft"> </div></div></body></html><table width="600" cellpadding="0" cellspacing="0" border="0"><tbody><tr><td>
<div style="width:600px;text-align:left;font:12px/15px simsun;color:#000;background:#fff;"> <!-- 水平居左的邮件 --> </div></td></tr></tbody></table> <div style="text-align:center;"> <table width="600" cellpadding="0" cellspacing="0" border="0" style="margin:0 auto;"><tbody><tr><td> <div style="width:600px;text-align:left;font:12px/15px simsun;color:#000;background:#fff;"> <!-- 水平居中的邮件 --> </div> </td></tr></tbody></table></div>标签：
原文地址：http://www.cnblogs.com/zhongfufen/p/4482158.html
