Scrolls root so el is vertically centered in the root’s viewport. Uses only root.scrollTop — never scrollIntoView, which on mobile can scroll the wrong ancestor and yank the page after the user scrolled up.
root
el
root.scrollTop
scrollIntoView
Page scroll container.
Live caption element to pin.
Instant or smooth scroll.
Scrolls
rootsoelis vertically centered in the root’s viewport. Uses onlyroot.scrollTop— neverscrollIntoView, which on mobile can scroll the wrong ancestor and yank the page after the user scrolled up.