.itsc-backTop{
    background-color: rgba(0, 94, 163, 0.8);
    position: fixed;
    right: 20px;
    bottom: 100px;
    width: 55px;
    height: 55px;
    cursor: pointer;
    display: none;
    border-radius: 100px;}

.itsc-backTop>img{
    width: 50px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);}

@media screen and (max-width:768px) {
    .itsc-backTop{
        width: 35px;
        height: 35px;
        bottom: 50px;}

    .itsc-backTop>img{
        width: 30px;}
}