Display issue on API reference page (Medium Screen)

## Bug description

In "Operaion: Details" -> "Request body", some text are overlapping each other while showing in 787px width(medium screen).
The parent article has 220px padding-left and 80px padding-right so that all article content can be showed.

## Reproduction steps

1. Go to 'API reference' page
2. Scroll down to 'Request body'
4. See display issue

## Expected behavior

No overlapping on any screen size(Just like the look after unchecking box-sizing on that unordered list)

Open the API reference page and scroll to the Operation: Details → Request body section at about 787px width. Inspect the article padding and the unordered list's box-sizing behavior, then compare the layout with the reported screenshot. Done means the text no longer overlaps at the medium screen width or other screen sizes.

Written by the indexing model from the issue text.