YouTube videos have extra margins in question feedback and explanation sections.

[FrenjaminBanklin]

YouTube chunks have extra right-side margins that are pushing the videos to the left, which makes them flow outside their parent containers.

Examples: Extra YouTube chunk margins in a question's feedback section:

Extra YouTube chunk margins in a question's explanation section:

It looks like the extra margins on YouTube chunks are an (probably) unintended consequence of the classes being applied to those chunks. Specifically the .obojobo-draft--chunks--question .solution .solution-container > div > .component[data-obo-component='true'] rule is applying margins on the left and right side.

Should be easy enough to adjust the specificity of this rule to omit YouTube chunks somehow.