2003556 - sandiego.org - The options list from the language menu located in the page footer is rendered broken

Status: RESOLVED DUPLICATE of bug 1991929

(Core :: CSS Parsing and Computation, defect)

Description

[Raul Bucata]

Attachment: Chr vs ff

Environment:
Operating system: Windows 10
Firefox version: Firefox 147.0a1 (2025-12-01)

Steps to reproduce:

1. Navigate to: https://www.sandiego.org/
2. Scroll and reach the page footer
3. Trigger the language drop-down menu located on the right-hand side and observe

Expected Behavior:
The list of options is rendered correctly

Actual Behavior:
The list of options is rendered broken

Notes:

• Reproduces regardless of the status of ETP
• Issue found during the Anchor-positioning QA testing phase

Comment 1

[David Shin[:dshin]]

Attachment: Minimum Reproducible Case

Ah, this is an instance of Bug 1989292.
Because we generate position-area grid with local containing block, with scrollers at initial position, there's zero height in any selected track.

Comment 2

[Emilio Cobos Álvarez [:emilio]]

Bug 1989292 fixed the zero-height in your test-case, but the element is still supposed to shrink-wrap, right? Do you know where that is tracked?

Comment 3

[Emilio Cobos Álvarez [:emilio]]

Also it didn't seem to be related to that bug after all because the containing block is not a scroller, there's a rule like:

.layout-container div:has(#language-dropdown--footer) {
  position: relative;
}

Which makes the CB a non-scrollable <div class="footer-languages">.

Comment 4

[Emilio Cobos Álvarez [:emilio]]

Attachment: Test-case for the shrink-wrapping

Here's a much simpler test-case for that.

Comment 5

[Jonathan Watt [:jwatt]]

The patches for bug 1991929 seem to fix this for me.

Although there is still a difference to Chrome, I think Chrome is currently rendering this incorrectly. Currently in Chrome Canary the menu list covers the menu. But the positioned element has position-area: end center, so really the menu list should be centered under the menu.

Comment 6

[David Shin[:dshin]]

Technically Chrome is more correct here - menu overflows the CB and should get shifted up.

Comment 7

[Emilio Cobos Álvarez [:emilio]]

Works great now.