Tests needed

[AlexDaniel]

Right now I am afraid to submit pull requests because I don't want to break something.

Would be cool if there was a set of test cases, so that I can open both versions (old and new) side by side and see if everything looks correctly.

One way to do it so to create test-like .org files for each expected feature. Another is to expand files in sections/ folder so that every possible feature (or edge case) is there. I'd much rather prefer the former (each test in a separate file).

Not sure if there is any way to automate it. Perhaps create an image for every test with wkhtmltoimage, compose them side by side and save into a folder? I have no idea how CSS projects are usually tested.