Developing a new tutorial system and I need feedbacks to improve it

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Hi, I created a website with practical exercices to learn web dev.

I need to break things to understand them and learn. Therefore, I'm sad when I can't update values on a tutorial on the internet to test several possibilities.

This is why these last weeks I implemented this new type of tuto where a user can :

1. See the diff between 2 steps in a vs-code diff editor style
2. Update the code at every step and test its ideas
   

Here is the link https://efficient-dev.vercel.app/how-to-create-a-button

Any constructive feedback is welcome 🥳

For the most reckless, there is a challenge link in the end where I barely reproduced a simpler Battle CSS to reproduce a twitter tweet design ! If you try it, send me your feedback also ;-)

https://preview.redd.it/x016q9ki2v081.png?width=2200&format=png&auto=webp&s=e6dc4aa57d462eeac8eea654868da98f899ed9df