.tree-block{width:50%;box-sizing:border-box;overflow:auto;height:800px}[dir] .tree-block{padding:10px;border:1px dotted #ccd}[dir=ltr] .tree-block{float:left}[dir=rtl] .tree-block{float:right}.tree-search-input{width:70%;outline:none}[dir] .tree-search-input{padding:6px 8px;border-radius:6px;border:1px solid #ccc}.tree-search-btn{width:25%;outline:none;color:#757575}[dir] .tree-search-btn{padding:6px 8px;border-radius:6px;background-color:#dadada;border:1px solid #e2e1e1}