[dir] .he-tree .tree-node{border:1px solid #ccc;margin-bottom:5px;padding:5px}.he-tree--hidden{display:none}[dir=ltr] .he-tree--rtl{direction:rtl}[dir=rtl] .he-tree--rtl{direction:ltr}.he-tree .tree-placeholder-node{height:20px}[dir] .he-tree .tree-placeholder-node{background:#ddf2f9;border:1px dashed #00d9ff}[dir] .he-tree .dragging .tree-node-back:hover{background-color:inherit}