.scrollToTop{
    background-color:rgba(0,0,0,.7);
    color:#fff;
    border-radius:999em;
    height:2.5em;
    width:2.5em;
    line-height:2.5em;
    text-decoration: none;text-align:center;
    position:fixed;
    bottom:1.3em;
    right:1.3em;
    display:none;
    font-size:2em;
    z-index: 9999;
}
.scrollToTop:hover{
    text-decoration:none;
}
.scrollToTop span{
    margin-bottom: 5px;
}
@media screen and (max-width: 767px){
    .scrollToTop{
        font-size: 1.5em;
    }
}