*{
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

#scrollUp {
    bottom: 5px;
    right: 5px;
    width: 60px;
    height: 60px;
    background: url(../img/top.jpg);
    background-size: cover;
}