Default theme keyword formatting OJS 3.3

Issue: line spacing is inconsistent for keywords

Our OJS 3.3 journals, using the default theme, have a minor display/formatting problem between lines of keywords. The line spacing between the first and second lines of keywords has a greater width than between the second and third (etc.) lines. Here are a few examples:

Steps I took leading up to the issue
Issue occurs just upon accessing the article pages, as in the links above. No hard returns or unusual character inputs are in the OJS metadata fields.

Application version
OJS / default theme

Additional information

Any help is very much appreciated!