Ever since this morning, I haven't been able to get into the forums on my iPhone, whether I try Safari or the browser the Twitter app uses. I just wind up with this when I follow my bookmark to Games & Technology:
On the main forum page, I get what looks like a black version instead with a shorter scroll bar.
I'm running an iPhone 6s Plus with iOS 11.2.1, for whatever that may help.
Judging by the fact I'm making this thread instead of responding to one, I'm guessing this is unique to me.
Oh, and I tried resetting the phone, to no avail.