Thanks for submitting a pull request! Please provide enough information so that others can review your pull request. Additionally, make sure you've done all of these things:

• I've followed the contributing guidelines to the best of my understanding
• I've read and understood the contributing guidelines
• I've formatted my code according to Natron's code style
• I've searched the pull requests tracker to ensure that this PR is not a duplicate

PR Description

What type of PR is this? (Check one of the boxes below)

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement (non-breaking change which does not add functionality nor fixes a bug but improves Natron in some way)
• Breaking change (fix or feature that would cause existing functionality to change)
• My change requires a change to the documentation
  • I have updated the documentation accordingly

What does this pull request do?

This change fixes the documentation generation so that the CSS styles start working again.

Show a few screenshots (if this is a visual change)

Documentation before change:

Documentation after change:

Have you tested your changes (if applicable)? If so, how?

Yes. I rebuilt the documentation locally.

Futher details of this pull request

The fix essentially came from this StackOverflow article. Our documentation config matched the situation in that article, and the suggested solution also worked for us.