DOC: Increase size of headings #19695
Merged
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PR Summary
Some time ago, we switch to Carlito, but this font seems to be a bit smaller than our body font.
The default styling makes fourth-level headings (

h4
) the same size as text, but bold:With the smaller font, this incorrectly makes the fourth-level headings look smaller than the text:

To match the body font, Carlito needs a base size of 16px (vs 14px), so re-scale all the headings using the CSS default em-size * 16px:

Additionally, define the custom font under one name, instead of multiple. This means that styles use the normal CSS, and font fallbacks will get the right style.
PR Checklist
pytest
passes).flake8
on changed files to check).flake8-docstrings
and runflake8 --docstring-convention=all
).doc/users/next_whats_new/
(follow instructions in README.rst there).doc/api/next_api_changes/
(follow instructions in README.rst there).