The same is happening at AvoinGLAM page:

At Basque Wikipedia main page

These shouldn't be so high

All this buttons had the same height

All this images should have the height of the third one

All this images should have the height of the last one

All this is coming from

body.skin--responsive .mw-parser-output a > img, body.skin--responsive .mw-parser-output noscript > img {height: auto !important;}

Tonight @Jdlrobson added a new !important rule to the height at Basque Wikipedia main page templatestyle, which solves "for now" the visual problem. However, having two conflicting !important rules one over the next one doesn't look like a good long-term solution.

This appears to be related to T367480.

I'm sure that this is related, but I was asked to open a new ticket.

@Theklan - just to check the edits yesterday addressed this issue for now? We will work on a improving this with a long term fix so we can revert those !important rules.

Yes, they seem solved, but still I find that some heights are not as expected. Anyway, I have opened a subtask.

Okay thanks for writing this up so concisely - it was very helpful! . I've updated T367463 and made sure to understand the issue here and fold its requirements into T367463 to make sure this is fixed comprehensively.