Change 451233 had a related patch set uploaded (by Santhosh; owner: Santhosh):
[mediawiki/extensions/ContentTranslation@master] Avoid wide section overflow hidden

https://gerrit.wikimedia.org/r/451233

Change 451233 merged by jenkins-bot:
[mediawiki/extensions/ContentTranslation@master] Avoid wide section overflow hidden

https://gerrit.wikimedia.org/r/451233

This problem has been ongoing for quite some time, which is indicated by number of duplicates describing overflowing content.

Patch is merged now, but there may be some points to be discussed. Not sure if there alternatives to displaying horizontal scrollbar, but Design tag was added to one of the duplicates T190574, which maybe indicates this problem will need more careful thought.

Problems with current state:

• VE node/template highlight does not account for horizontal scrollbar which causes following cases:

• Part of image is missing (along with caption) for en:Nuclear_drip_line

• Horizontal scroll displayed for narrow image

• Double scroll bar issue from T191754 seems to be reintroduced (on Chrome 68). This is what I used to see before the patch for this ticket.

Just another case:

• The description of the image is cut off:

Before the fix the image was overflowing the source article canvas

I re-checked the following articles for the issuesin display

• Gp41 from en to es - the issue that has been fixed.

• en:Nuclear_drip_line - confirmed that the img is partially displayed. I combined this issue with the issue from my previous comment and filed as T202182: CX2: Wide image displayed partially

• Horizontal scroll displayed for narrow image issue - I've created a separate ticket for that- T202180: CX2: Unnecessary vertical/horizontal scrollbars displayed for images. The issue with the timeline template T191754 is a different issue.