.layout-gotop {
    background: rgba(255,255,255,.5);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 4px;
    transition: background-color .3s linear;
    color: #606266;
}

    .layout-gotop:hover {
        background-color: #fff;
        color: #606266;
    }
