Help how I do create a UI for my new programing language Ele

Question

Help it should have a color coded text in textarea, number line. Etc or professional looking UI
I don't know Css well
Hence anyone wana help and get Crdits for helping?
Plz help I wana complete this project soon
https://code.sololearn.com/Wsj2lrSdJwiC/?ref=app

Answer 1

Here is what I found on github and not only. I hope you like it. If not, write
https://www.sololearn.com/compiler-playground/W4EzRUpBWo7L