.treeSelection {
    position: absolute;
    background-color: #fff;
    overflow: auto;
    height: auto;
    max-height: 350px;
}
.treeSelection label {
    cursor: default;
}
.treeSelection .no-sign {
    list-style-type: none;
}
.treeSelector {
    white-space: nowrap;
    overflow: hidden;
}
.treeSelector b {
    font-weight: normal;
    display:inline-block;
    border: 1px #999 solid;
    background-color: #ddd;
    padding-left: 5px;
    margin-right:5px;
    border-radius: 5px;
    overflow: hidden;
}
.treeSelector b span {
    font-size:12px;
    background-color: #bbb;
    margin-left:5px;
    border-left:1px #999 solid;
    padding: 6px 5px;
    color:#333
}
.treeSelector b span:hover {
    color:#fff;
}
.treeSelector b:hover {
    background-color: #eee;
}