Your webpage has a glitch

I don't think that's a glitch. It's quite a common thing for that style of "text next to image" designs. On small screens you still get to see the editor with a mobile sized canvas and on big screens you get to see more. Importantly, nothing is lost for mobile users... responsive done right. 😉

I'm not talking about the editor (in which also - part of the text is not visible); rather about your index page (see the link I posted). P.S. - it's true also for some other wide images on that page.

Yeah, index page looks fine to me but it would probably help if you provide a screenshot so any issue could be seen and then fixed.

(I'm not the creator or a member of the project... just a user.)