.scrollTop{
    position: fixed;
    bottom: .2rem;
    left: 0.2rem;
    padding: 10px 15px;
    transform: rotate(-90deg);
    color: rgb(20, 5, 233);
    border-radius: 50%;
    border-radius: 1px solid #fff;
    cursor: pointer;
    transition: all 0.5s ease 0s;
    width: 4rem;
    height: 4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.scrollTop:hover{
    color: #222;
    background-color: #fbe122;
}

.scrollTop i{
    font-size: 2.7rem;
}