While doing another PR I noticed that the indentation in the stylesheets is really bad. I run stylelint with autofix enabled against it and this is the result. There are still some things that it doesn't like, but that are mostly order of selector related issues.

Please test the changes locally to make sure everything still works.

I used the following config: https://github.com/stylelint/stylelint-config-standard

Extends stylelint-config-recommended.

Turns on additional rules to enforce the common stylistic conventions found within a handful of CSS styleguides, including: The Idiomatic CSS Principles, Google's CSS Style Guide, Airbnb's Styleguide, and @mdo's Code Guide.

It favours flexibility over strictness for things like multi-line lists and single-line rulesets, and tries to avoid potentially divisive rules.