ul,#rootUL{list-style-type:none} #myUL{margin:0;padding:0} .caret{cursor:pointer;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none} .caret::before{content:"\25B6";color:black;display:inline-block;margin-right:6px} .caret-down::before{-ms-transform:rotate(90deg);-webkit-transform:rotate(90deg);' transform:rotate(90deg)} .nested{display:none} .active{display:block}