#scrollToTopBtn {
    position: fixed;
    cursor: pointer;
    z-index: 999;
}

#scrollToTopBtn:after {
    content: "";
    position: absolute;
    top: 45%;
    right: 1.1rem;
    width: 3rem;
    height: 3rem;
    transition: .3s ease;
    background-image: url("../img/top_button_fill.svg");
    background-repeat: no-repeat;
    background-size: cover;
}

@media screen and (max-width: 575px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: .5rem;
    }
}

@media screen and (min-width: 576px) and (max-width: 767px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: 0.9rem;
    }
}

@media screen and (min-width: 768px) and (max-width: 991px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: 1.2rem;
    }
}

@media screen and (min-width: 992px) and (max-width: 1199px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: 1.5rem;
    }
}

@media screen and (min-width: 1200px) and (max-width: 1399px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: 3rem;
    }
}

@media screen and (min-width: 1400px) {
    #scrollToTopBtn {
        bottom: 6rem;
        right: 4rem;
    }
}