#footer {
    background: none;
}

#footer .cal-footer-btn {
    overflow: hidden;
}

#footer .cal-footer-btn.active {
    overflow: visible;
}

#footer .cal-footer-btn .cal-link-wrap {
    opacity: 0;
    transition: all .1s linear;
}

#footer .cal-footer-btn.active .cal-link-wrap {
    opacity: 1;
}