Bulma `hero is-fullheight` renders inconsistent mobile height; viewport units or content overflow suspected
A Bulma hero is-fullheight section can appear taller or shorter than expected on mobile devices, but the underlying cause is not always the hero class itself. The goal is to determine whether the discrepancy comes from viewport-height sizing or from hero-body content and padding before making changes. Mobile browsers handle 100vh inconsistently when URL bars