chan.sankakucomplex.com - design is broken

[webcompat-bot]

URL: https://chan.sankakucomplex.com

Browser / Version: Firefox Mobile 59.0
Operating System: Android 7.1.2
Tested Another Browser: Yes

Problem type: Design is broken
Description: Some elements of the site overlap each other
Steps to Reproduce:
At the maximum scaling of a site, the left block with search is layered on the block with images. This does not happen with Chromium-based sites.

From webcompat.com with ❤️

[MDTsai]

Confirmed, the left panel uses position:fixed, in Firefox mobile, the panel is really "fixed" on the screen, but not in Chrome mobile.
Move to needsdiagnosis.

[MDTsai]

It's also happen on Firefox desktop, while zoom-in and scroll down, left panel is still on visible area top/left.

[karlcow]

position: fixed and the lack of a virtual content viewport. That's it.
https://bugzilla.mozilla.org/show_bug.cgi?id=656036

[karlcow]

Close as duplicate of https://bugzilla.mozilla.org/show_bug.cgi?id=656036

[theres-waldo]

Fixed in Firefox >= 63 by https://bugzilla.mozilla.org/show_bug.cgi?id=656036.