soon all major browsers had two modes: “quirks mode” and “standards mode.” Of course, this being the web, things quickly got out of hand. When Mozilla tried to ship version 1.1 of their browser, they discovered that there were pages being rendered in “standards mode” which were actually relying on one specific quirk. Mozilla had just fixed its rendering engine to eliminate this quirk, and thousands of pages broke all at once. Thus was created — and I am not making this up — “almost standards mode.
