Can someone please help me?

I'm creating a site at www.ampedit.uk

It includes a blog for which I've used DropInBlog code.

The blog works in standard pc format, but disappears when I switch to mobile (either by shrinking my pc browser window or viewing on my phone).

I've tried resizing the placeholder on the mobile version but without success.

DropInBox say it's not a fault of theirs and suggest that it's to do with CSS or Javascript.

Can anyone advise me what to do?