Ah crap, I only just hacked it together, and didn't consider smaller screen sizes. I really should have learned the dangers of late night hacking by now - fail. Cheers for the heads up, I've put a quick fix in for now, I'll re-evaluate it properly tomorrow.
Yes, plus that's where someone would look if they were interested (and that strong positive indicator will help you down the line). I didn't see the diagonal banner right away, and I was looking for it.
I would suggest putting it as a small text link in your footer instead, maybe "Want to hire me? Email..." under the copyright note.