#scrollUp {
background-image: url(//www.myit66.com/wp-content/plugins/tap-to-top/img/top.png);
background-color: black;
bottom: 10px;
right: 10px;
width: 38px; height: 38px; text-indent: -9999999px;
display: block;
border: 1px solid #fff;
}