I had always heard inline styles were slower and not recommended by browsers. Here is a blog post looking into that: https://simonadcock.com/are-inline-styles-

I had always heard inline styles were slower and not recommended by browsers. Here is a blog post looking into that: https://simonadcock.com/are-inline-styles-faster-than-atomic-css/ https://simonadcock.com/are-inline-styles-faster-than-atomic... In reality the difference wasn’t so big but inline styles might not scale well. (I also realize the original poster might have been sarcastic but it’s a fun to look into even the non serious ideas).