.layui-form-select{
    width: calc(100% - 3rem);
    display: inline-block;
    float: left;
}
.divselecttip{
    width: 3rem;
    display: inline-block;
    height: 1.9rem;
    line-height: 1.9rem;
    text-align: center;
    border: 1px solid #eeeeee;
    border-left: 0;
}
.night .divselecttip{
    border: 1px solid #444;
    border-left: 0;
    color: #ccc;
}