Hi,
Note that when you create a new thread on our website, you have a field where you can provide a URL and that URL can be made private. In that case, we'll be the only ones (moderators) to see it.
This issue comes from the CSS of your template.
You can circumvent it by forcing the font-size for that input with custom CSS:
monosnap.com/file/oWRiLAChesOyWQBy7hkTNaVhvsb6iu
But you might want to contact your template support as they might have a better solution and/or include some patches to their template so that others won't run into the same issue.=