.category-tree{padding:20px;line-height:30px}.category-tree ul{padding-left:20px;list-style:none}.category-tree .item-group{border-bottom:1px solid #e5e5e5;padding:20px 0}.category-tree .primary-item-name{font-size:18px;line-height:30px;border-left:2px solid #60aaf4;padding-left:10px}.category-tree .item-children{padding-left:20px}.category-tree .secondary-item-name{font-size:14px}.category-tree .action-area{display:none}.category-tree .primary-item{display:-webkit-box;display:-ms-flexbox;display:flex;padding:10px 0}.category-tree .primary-item:hover{background-color:#f5f5f5}.category-tree .primary-item:hover .action-area{display:block}.category-tree .secondary-item{display:-webkit-box;display:-ms-flexbox;display:flex;padding:10px}.category-tree .secondary-item:hover{background-color:#f5f5f5}.category-tree .secondary-item:hover .action-area{display:block}