Documentation request - document how to override CSS elements

[couling]

Looking here: https://mkdocstrings.github.io/python/customization/ it describes the CSS classes which are used with mkdocstrings-python. Unfortunelty some of us are coming into this cold and so it's much less obvious how to customise them. Despite giving example CSS rules for Material and ReadTheDocs, there's no hint of where to copy-paste this code to.

I understand the basic principle of CSS and HTML, but have no idea about the architecture that would allow me to add additional CSS files.

Would it be possible to document how to override CSS elements (on the page linked above) or otherwise cross link the relevant documentation (say on Mkdocs?). At minimum, it would be helpful if those code examples for themes could be completed with instructions on what to do with them.

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I'm hitting this because I personally find the grey styled code headings very distracting. All features other than the background are fine, but the grey box is tripping my eye into missing that it's a heading.

[pawamoy]

Thanks for the feedback, this is always appreciated 🙂
I'll label this as "docs improvements" for when I have time!