Board Thread:Support Requests - Getting Technical/@comment-32704847-20200209151109

Is there a way to make a specific section with h2 heading collapsed on desktop as it is on mobile?

[Important condition] Is it possible to do this without:
 * javascript
 * adding useless code to the mobile version (like tables) that would narrow even more the width of the section for mobile viewers.

I mean, any class like mw-collapsible or CSS that would make some h2 sections on desktop to behave exactly as they already do on mobile screens?

Edit: I have tried this with templates, but it broke the sections structure on mobile. 