When I upload my exported HTML5 document and paste the code in my website, only the smallest layout will show. Furthermore it doesn’t change at any of my set breakpoint widths.
Am I not uploading all of the layouts somehow? Or do you suspect that something in my site’s CSS is blocking this responsive functionality?
When I enter preview mode my layouts change at the correct breakpoint widths in the browser.
It looks like the document you embedded is within a div that has a max width of 789. Might help to place it out of that container, and instead place it within <div class="class="page-title right">
It should expand to fit the larger layout if your layout width is smaller than 789. Can you share your document?