/* Image style */
#scrollUp {
    background-image: url('/newmoban/_external/demo.mobanwang.com/mb/lo202304/202304113/html/img/top.png');
    bottom: 30px;
    right: 20px;
    width: 38px;    /* Width of image */
    height: 38px;   /* Height of image */
    text-indent: -9999px;
}