.UIBackTopTopControl {
        background: rgba(0, 0, 0, 0) url("images/up.png") no-repeat scroll center center;
        bottom: 13%;
        height: 64px;
        position: fixed;
        right: 2%;
        width: 64px;
        z-index: 10;
        background-size: contain;
}
@media only screen and (max-width: 768px){
.UIBackTopTopControl {
    bottom: 3% !important;
}
}