.tree {
    color: #333;
    font-size: 14px;
    overflow: auto;
}

.tree-node {
    /* margin-left: 20px; */
}

.tree-toggle {
    cursor: pointer;
    /* margin-right: 5px; */
    display: inline-block;
    width: 16px;
    text-align: center;
    transition-duration: 0.2s;
    transform: scaleX(0.6) rotateZ(-90deg);
    user-select: none;
}
.is-expanded .tree-toggle{
    transform: scaleY(0.6) rotateZ(0);
}
.tree-children {
    display: none;
}

.tree-children.expanded {
    display: block;
}

.tree-item {
    padding: 2px 5px;
    height: 28px;
    line-height: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
}
.tree-item:hover {
    background-color: #f0f0f0;
}
.tree-item.is-select{
    background-color: #0080ff;
    color: #fff;
}
.tree-item.is-select .tree-icon{
    background-color: #fff;
}

.tree-icon {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: #0080ff;
    margin: 0 5px;
}
.tree-item-name{
    margin-left: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}