CSS function--功能样式

功能样式，从常用样式方法中抽离，按需使用，使用前请先阅读 CSS规范 中相关条列。

/* 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,5b8b4f53;}

.f-ff1{font-family:"Microsoft YaHei",5fae8f6f96c59ed1,arial,5b8b4f53;}

.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;}