I'm pretty good at handling the cascade and knowing how things work, so this experience you are describing is not mine where CSS is concerned, I doubt I've had to do several hours of trying to make sense of any CSS for probably 5-6 years.
As such that the game does not actually allow you to use the cascade as it should be used is a downside.
"I understand cascading and so I know it isn't what should be done with Cascading StyleSheets. It is right this tool to simulate CSS doesn't support CSS' nominative feature "
I'm glad we agree CSS is unintuitive on many unique and creative fronts.
As such that the game does not actually allow you to use the cascade as it should be used is a downside.