HTML block is not responsive

Obviously, the HTML block is not responsive.

very bad, for devices like smartphone and tablet if images in HTML BLOCK

I have a few HTML blocks with images in tables and they're responsive.

also pictures in tables do not give a solution.

I suppose you used width="800" or something like that. Try to use a relative expression like width="80%"

Hello Jonnaklasine!

Is it possible to get a whole picture about "block which isn't responsible"? What code, what parameters and on what mobile devices with what OS it doesn't work fine?