.dept-tree {
    width: 100%;
    height: -webkit-calc(100vh - 247px);
    height: -moz-calc(100vh - 247px);
    height: calc(100vh - 247px);
    margin-top: 20px;
}
.button{
    margin-top: 10px;
    width: 94%;
    margin-left: 3%;
    display: block;
    height: 40px;
    line-height: 40px;
    padding: 0 15px;
    white-space: nowrap;
    text-align: center;
    font-size: 14.5px;
    border: none;
    cursor: pointer;
    box-sizing: border-box;
    display:inline-block;
    outline: 0;
    border-radius: 2px;
    -webkit-appearance: none;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.15);
}
.button-primary{
    background-color: #5FB878;
    color: white;
}
.button-default{
    color: #2f495e;
    background-color: #edf2f7;
}
.user-main{
    width: calc(100% - 312px);
    float: right;
}
.user-left{
    width: 300px;
    float: left;
}
.user-collasped.user-main{
    width: 100%;
}
.user-collasped.user-left{
    width: 0px;
}