Update sydney.html - revert to d4e7bd9
Update sydney.html - revert to d4e7bd9

All of the styling disappeared from Sydney ResBaz website after previous commit, so I'm reverting back to d4e7bd9, the version immediately before it all went wrong. I've just been working on GitHub online, and there didn't seem to be way to revert online, so I've just copy-pasted the version d4e7bd9, sorry for the non-git way of dealing with things.
resbaz/resbaz2017,resbaz/resbaz2017,resbaz/resbaz2017