Ok, why has Mumsnet gone all strange looking??

[QueenOfFlamingXmasPuddings]

Its set to Classic, but all of a sudden a few minutes ago it went all funny, like New but not quite

There's no blue bars with poster names/date/time etc between posts, so all hard to read.

And all the thread titles have gone a funny shade of blue and a different typeface.

And links aren't highlighted the same and stay blue even when they have been clicked on...