.btnscroll {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    padding: 10px 15px;
    font-size: 18px;
    background-color: rgba(34, 34, 34, .7);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    z-index: 99;
}

.btnscroll:hover {
    background-color: var(--politechnika-primary-color);
    border: .1px solid #fff;
}