@media only screen and (max-height: 860px) {
    .back-page-button-a {
        left: 5px;
        bottom: 5px;
        background-color: gray;
        padding: 2px;
        border-radius: 6px;
        z-index: 101;
    }

    .main-footer-copyright {
        padding-left: 65px;
        display: inline-flex;
    }

    .footer-copyright {
        font-size: 11px;
    }
}

@media only screen and (max-height: 860px) {
    .main-content {
        padding-top: 40px;
    }
}