Fix a missing column of background color in code blocks.
Review Request #12615 — Created Sept. 21, 2022 and submitted
The code block CSS had a vertical strip of white just to the left of the
actual code being displayed. This was due to a
didn't have a background set, getting the background instead from the
This change adds a
background: inheritto ensure it gets the
background color set by the element it's part of.
Tested that this looked correct on Firefox and Chrome.
Checked code blocks in text fields (like Description), which dock to edges,
and in reviews.