.fl{float:left;}
.fr{float:right;}
.fn{float:none;}
.al{text-align:left;}
.ac{text-align:center;}
.ar{text-align:right;}
.clr{display:block;overflow:hidden;clear:both;height:0;line-height:0;font-size:0;}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;}
.clearfix{display:inline-table;}/* Hides from IE-mac \*/*html .clearfix{height:1%;}
.clearfix{display:block;}/* End hide from IE-mac */*+html .clearfix{min-height:1%;}
.overflow{overflow:hidden;}
.form label,.form input,.form select,.form textarea,.form button,.form .label{float:left;font-size:12px;}
.block{display:block;overflow:hidden;cursor:pointer;}
.hide{display:none;}.invisible{visibility:hidden;}
.tab{overflow:hidden;zoom:1;}
.tab li,.tab a,.tab-item{float:left;cursor:pointer;text-align:center;}
.m,.mt,.mc,.mb{overflow:hidden;zoom:1;}
.mt .extra{float:right;}.m{margin-bottom:10px;}