The underline is drawn like a pen stroke — it grows from the side your pointer came in on, and when you leave it clears the way it's heading out.
Hover the nav links above, or the dish names below — enter from the left, then the right, and watch the draw direction flip.
Everything on this page scrolls and clicks normally — the underline layer sits on top of the text without touching its structure, its links, or the native cursor.