._2mum{-webkit-backface-visibility:hidden;position:relative;width:100%}._2mum>._2mun{bottom:0;left:0;pointer-events:none;position:absolute;top:0;width:1px;z-index:-1}._2mum:after,._2mum:before{clear:both;content:'';display:block;height:0;overflow:hidden;width:0}