.site-nav.open .site-nav__meta,
.site-nav.open .site-nav__list--main {
    max-height: 300vh !important;
}

@media screen and (max-width: 767px) {
    .site-nav.open .site-nav__meta,
    .site-nav.open .site-nav__list--main {
        max-height: 300vh !important;
    }
}