.scrollToTop a {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    text-align: center;
    line-height: 32px;
    background-color: #157af8;
    color: white;
    text-decoration: none;
    position: fixed;
    bottom: 60px;
    right: 30px;
    z-index: 999;
    opacity: 0;
}

.scrollToTop a.show {
    animation: show 1.5s ease forwards;
}

@keyframes show {
    0% {
        transform: translateY(-20px);
        opacity: 0
    }

    100% {
        transform: translateY(0px);
        opacity: 1
    }
}