.Indicator{display:inline-block;border-left:1px solid #ddd;min-width:20px;position:relative}.Indicator .Nub{position:absolute;left:-1px;content:" ";border:13px solid transparent;border-left-color:#ddd;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;-moz-transition:top 1s;-o-transition:top 1s;-webkit-transition:top 1s;transition:top 1s}.Indicator .Nub:before{left:-13.2px;top:0;border:solid transparent;content:" ";height:0;width:0;position:absolute;pointer-events:none;border-left-color:#fff;border-width:12px;margin-top:-12px}