100vh - var(--toolbar-height), but when viewed on an iPhone, it was too long vertically, causing the toolbar to be hidden by scrolling.height: 100% to all of them. and adding height: 100% to all of them solves the problem.user-scalable=no, but I'm not sure if this is required.This page is auto-translated from /nishio/100vhだと縦にはみ出す using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.