#toTop{display:none;position:fixed;right:15px;bottom:15px;width:48px;height:48px;background-image:url(../images/svg/button-up.svg);background-repeat:no-repeat;background-size:40px 40px;opacity:.4;filter:alpha(opacity=40);outline:none;z-index:999}#toTop:hover{opacity:.8;filter:alpha(opacity=80);outline:none}@media (min-width: 0px) and (max-width: 550px){#toTop{bottom:10px;right:10px}}