*{
    margin: 0;
    padding: 0;
}

.to-top {
    background-image: linear-gradient(0deg, #fa6d86 10%, #ff994f 80%);
    position: fixed;
    bottom:20px;
    right: 20px;
    width :40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: 0px 0px 10px #7c7c7c;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 23px;
    color: #f7f7f7;
    text-decoration: none;
    opacity:0;
    pointer-events: none;
    transition: all .4s;
}

.to-top.active {
    bottom: 20px;
    pointer-events: auto;
    opacity: 1;
}