1、注意：在reset的时候，避免不必要的重置，例如“dt”没有默认边距。“ul”、“ol”只有左外边距。。。

2、在使用的时候因为全局设置字体为62.5%，所以页面要包裹class为"fz"的div，设置页面字体为12px

/*reset*/
body, p, dd, dl, form, h1, h2, h3, ul, ol, textarea { margin: 0; }

ul, ol { padding-left: 0; }

td, th, button, input, select, textarea, iframe { margin: 0; padding: 0; }

body, button, input, select, option, textarea { font-family: "Microsoft YaHei", "Arial"; color: #333; font-size: 62.5%; *font-size: 63%; }

input { border: none; }

input[type="text"], input[type="password"] { text-indent: 4px; }

body { background-color: #fff; }

li { list-style: none; }

a { color: #0074d9; text-decoration: none; }

a:link { }

a:visited { }

a:hover { }

a:active { }

iframe { border: none; }

table { border-collapse: collapse; border-spacing: 0; }

/*去除浏览器默认效果*/
input:focus, textarea:focus, select:focus { outline: none }

/*去除Chrome等浏览器文本框默认发光边框*/
input::-ms-clear { display: none; }

/*去除ie10+浏览器文本框后面的小叉叉*/
textarea { resize: none; }

/*禁止多行文本框textarea拖拽*/

/*------------------- single css ---------------------------*/
/*background-color*/
.bg-white { background-color: #fff; }

.bg-red { background-color: #ff4136; }

.bg-grey { background-color: #999; }

/*border-color name rule*/
.bde { border: 1px solid #eee; }

.bbd { border-bottom: 1px solid #ddd; }

/*clear*/
.clb { clear: both; }

.cll { clear: left; }

.clr { clear: right; }

/*cursor*/
.poi { cursor: pointer; }

.def { cursor: default; }

/*colors*/
.white { color: #fff; }

.grey { color: #aaa; }

.orange { color: #FF8518; }

.red { color: #FF4136; }

.g3 { color: #333; }

.g6 { color: #666; }

/*display*/
.dn { display: none; }

.dib { display: inline-block; }

/*float*/
.l { float: left; }

.r { float: right; }

/*font-size*/
.fz { font-size: 1.2em; }

.fz button, .fz input, .fz select, .fz textarea, .fz option { font-size: 1em; }

.fz14, input.fz { font-size: 1.15em; }

.fz18 { font-size: 1.3em; }

.fz24 { font-size: 2em; }

/*font-family*/
.fa { font-family: Arial; }

.fv { font-family: verdana; }

.fw { font-family: ‘Microsoft Yahei‘; }

/*font-style*/
.n { font-weight: normal; }

.b { font-weight: bold; }

.i { font-style: italic; }

/*height*/
.h20 { height: 20px; }

/*letter-spacing*/
.lt1 { letter-spacing: 1px; }

/*line-height*/
.lh40 { line-height: 40px; }

/*margin*/
.ml5 { margin-left: 5px; }

.ml10 { margin-left: 10px; }

.mr5 { margin-right: 5px; }

.mr10 { margin-right: 10px; }

.mt5 { margin-top: 5px; }

.mt10 { margin-top: 10px; }

.mb5 { margin-bottom: 5px; }

.mb10 { margin-bottom: 10px; }

/*overflow*/
.ovh { overflow: hidden; }

.ova { overflow: auto; }

/*padding*/
.p10 { padding: 10px; }

.pl5 { padding-left: 5px; }

.pl10 { padding-left: 10px; }

.pr5 { padding-right: 5px; }

.pr10 { padding-right: 10px; }

.pt5 { padding-top: 5px; }

.pt10 { padding-top: 10px; }

.pb5 { padding-bottom: 5px; }

.pb10 { padding-bottom: 10px; }

/*position*/
.rel { position: relative; }

.abs { position: absolute; }

/*percent width value*/
.pct100 { width: 100%; }

/*text-align*/
.tc { text-align: center; }

.tr { text-align: right; }

.tl { text-align: left; }

/*text-decoration*/
.tdl { text-decoration: underline; }

.tdn { text-decoration: none; }

/*vertical-align*/
.vm { vertical-align: middle; }

.vtb { vertical-align: text-bottom; }

.vb { vertical-align: bottom; }

.vt { vertical-align: top; }

.vn { vertical-align: -2px; }

/*visibility*/
.vh { visibility: hidden; }

.vv { visibility: visible; }

/*white-space*/
.nowrap { white-space: nowrap; }

/*white-wrap*/
.bk { word-wrap: break-word; }

/*width*/
.w100 { width: 100px; }

/*z-index*/
.zx1 { z-index: 1; }

.zx2 { z-index: 2; }

/*zoom*/
.z { *zoom: 1; }

/*------------------- multiply css ---------------------------*/
/*块状元素水平居中*/
.auto { margin-left: auto; margin-right: auto; }

/*清除浮动*/
.fix { *zoom: 1; }

.fix:after { display: table; content: ‘‘; clear: both; }

/*双栏自适应cell部分连续英文符换行*/
.cell_bk { display: table; width: 100%; table-layout: fixed; word-wrap: break-word; }

/*单行文字溢出虚点显示*/
.ell { text-overflow: ellipsis; white-space: nowrap; overflow: hidden; }

/*css3过渡动画效果*/
.trans { -webkit-transition: all 0.3s; transiton: all 0.3s; }

CSS重置