.scrollup{
    width:40px;
    height:40px;
    opacity:0.7;
    position:fixed;
    bottom:50px;
    right:90px;
    cursor: pointer;
    display:none;
    text-indent:-9999px;
    background: url('../../scrollup.png') no-repeat;
}
.scrollup:hover {
	opacity:1;
}
@media screen and (max-width: 768px) {
.scrollup{
    width:40px;
    height:40px;
    opacity:0.7;
    position:fixed;
    bottom:20px;
    right:20px;
    cursor: pointer;
    display:none;
    text-indent:-9999px;
    background: url('../../scrollup.png') no-repeat;
}
}