ul.mtree li.mtree-node{position:relative}ul.mtree li.mtree-node>a:before{color:#fff;font-size:12px;font-weight:100;position:absolute;right:0;top:3px;font-family:"fontawesome"}ul.mtree li.mtree-open>a:before{content:"";top:3px}ul.mtree li.mtree-closed>a:before{content:""}