The showcase profile on a 390 × 844 phone viewport.
Layout differences
There is no separate “mobile fallback image” field on the page background panel — the same media is used on both. If you don’t want a video on mobile, host an image as your background and skip video altogether.
Other mobile gotchas
- Animated stuff drains battery. Test your profile in Low Power Mode.
- Tab title typewriter keeps the tab title updating, which prevents Chrome on Android from sleeping the tab — costs more battery.
- Glass / blurred chrome can look stuttery on old phones. If you target a budget audience, prefer Solid chrome.
- Splash + autoplay — autoplay only kicks in after the splash tap on mobile; before that, the visitor sees the splash with no audio.
Testing
- iPhone Safari has its own quirks — test there if you have one.
- Chrome DevTools (F12 → device toolbar) is good enough for layout tests.
- Real devices > simulators for performance checks.