Ask HN: Coding Course for Web Designers

Calling all designers, I'm a front-end developer and I'm thinking of creating a front-end coding course for designers. I wondered if this would be of interest in particular to designers that want to be able to create more of their own html pages/improve their knowledge of coding? If so, I'd be really interested to know from designers: 1) what do you wish you could create on the front-end that you can't at the moment? 2) if you do do some front-end dev as well as design, how proficient are you? 3) what would you want to gain from a front-end coding course? What would you like to be able to build at the end of it? 4) Have you tried a coding course before and if so, what was wrong with it? Any feedback would be hugely appreciated, thank you!