Question 1

Does Estúdio HTML preview responsive layouts?

Accepted Answer

Yes — switch mobile, tablet and laptop viewports while editing HTML/CSS live.

Question 2

Can I compile MJML?

Accepted Answer

Yes — MJML Email mode compiles responsive email HTML locally; Newsletter Builder assembles email-safe layouts.

Question 3

Does it host my site?

Accepted Answer

No — preview runs in a sandboxed iframe locally; export HTML when you are ready.