tt-5-php-6001/plugin/admin/public/component/pear/css/module/treetable.css

.treeTable-icon  i:last-child{
	display: none!important;
}

.treeTable-empty{
	margin-left: -3px;
}
.treeTable-empty {
    width: 20px;
    display: inline-block;
}

.treeTable-icon {
    cursor: pointer;
}

.treeTable-icon .layui-icon-triangle-d:before {
    content: "\e623";
}

.treeTable-icon.open .layui-icon-triangle-d:before {
    content: "\e625";
    background-color: transparent;
}