移動(dòng)端rem適配，border應(yīng)該用什么單位

    <script>
        document.documentElement.style.fontSize = document.documentElement.clientWidth / 20.48 + 'px';
    </script>

是用px還是用rem

.layout-main .layout-left{
    flex: 0 0 2.85rem;
    width: 2.85rem;
    height: 100%;
    padding-top: 0.8rem;
    text-align: center;
    box-sizing: border-box;
    border-right: 1px solid #d7d4d4;
}

.layout-main .layout-left{
    flex: 0 0 2.85rem;
    width: 2.85rem;
    height: 100%;
    padding-top: 0.8rem;
    text-align: center;
    border-right: 0.01rem solid #d7d4d4;
}