.butdivs{
    display: inline-block;
    width: calc((100% - 0.25rem) / 2);
    border: 1px solid #eee;
    text-align: center;
    height: 1.9rem;
    line-height: 1.9rem;
    background-color: #f6f7fa;
    cursor: pointer;
}
.night .butdivs{
    background-color: #333;
    border: 1px solid #444;
}