$refs.header.offsetHeight) ? $el.classList.add('pageIsScrolling') : $el.classList.remove('pageIsScrolling'), (currentPageYOffset > $refs.header.offsetHeight && prevPageYOffset < currentPageYOffset) ? $el.classList.add('pageIsScrollingDown') : $el.classList.remove('pageIsScrollingDown'), prevPageYOffset = currentPageYOffset"
>
Go to Main Content
Go to Footer