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Add max-height constraint to thumbnails (+ upscale small images) - #6265

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MMilosz:fix/6264/thumbnail-image-dimensions-constrain
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MMilosz:fix/6264/thumbnail-image-dimensions-constrain

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@MMilosz

@MMilosz MMilosz commented Sep 24, 2026

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…tio DSpace#6264

An extremely tall image can break the layout. Calculate the max height from the max width and the existing aspect ratio

Additionally, upscale small images by setting `img { width: 100%; }`

Note that Bootstrap's `.img-fluid` class already provides `max-width: 100%` and `height: auto`
@MMilosz MMilosz added the quick win Pull request is small in size & should be easy to review and/or merge label Sep 24, 2026
@alanorth

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Thanks @MMilosz, I've noticed this on some thumbnails as well (for example infographics we produce).

Can you check how this compliments my suggestion to increase the default thumbnail size?

@lgeggleston lgeggleston added bug ux User Experience related works labels Sep 25, 2026
@lgeggleston lgeggleston moved this to 🙋 Needs Reviewers Assigned in DSpace 11.0 Release Sep 25, 2026
@lgeggleston lgeggleston added the 1 APPROVAL pull request only requires a single approval to merge label Sep 25, 2026
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1 APPROVAL pull request only requires a single approval to merge bug quick win Pull request is small in size & should be easy to review and/or merge ux User Experience related works

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Successfully merging this pull request may close these issues.

No max-height on thumbnails allows oversized images to break layout

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