.ml-ui-foldtree-button, .ml-ui-foldtree-item {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-ui-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.ml-ui-foldtree-button, .ml-ui-foldtree-label {
    cursor: pointer;
}

.ml-ui-foldtree-sub {
    margin-left: 10px;
    border-left: 1px solid;
}

.ml-ui-foldtree-item {
    cursor: default;
    padding: 2px 5px;
    border-right: 1px solid;
    border-top: 1px solid;
}

.ml-ui-foldtree-item:before {
    width: 30px;
    content: ' ';
    text-align: center;
    display: inline-block;
}

.ml-ui-foldtree-button {
    display: inline-block;
    width: 30px;
}

.ml-ui-foldtree-button:before {
    content: '[ + ]';
}

.ml-ui-foldtree-list {
    list-style: none;
    display: none;
}

.ml-ui-foldtree-main > .ml-ui-foldtree-list {
    display: block;
}

.ml-ui-foldtree-main > .ml-ui-foldtree-list > li:last-child > .ml-ui-foldtree-item {
    border-bottom: 1px solid;
}

.ml-ui-foldtree-main-list > li:last-child > .ml-ui-foldtree-item {
    border-bottom: 1px solid;
}

.ml-ui-foldtree-main-list > li:last-child.ml-ui-foldtree--unfold .ml-ui-foldtree-list li:last-child .ml-ui-foldtree-item {
    border-bottom: 1px solid;
}

.ml-ui-foldtree--has-multiple .ml-ui-foldtree-item:before {
    content: '';
    width: 0;
}

.ml-ui-foldtree--unfold > .ml-ui-foldtree-item {
    border-bottom: 1px solid;
}

.ml-ui-foldtree--unfold > .ml-ui-foldtree-item .ml-ui-foldtree-button:before {
    content: '[ - ]';
}

.ml-ui-foldtree--unfold > .ml-ui-foldtree-list {
    display: block;
}

.ml-ui-foldtree--unfold > .ml-ui-foldtree-list > li:first-child .ml-ui-foldtree-item {
    border-top: none;
}