Why would Google use a font tag?

Question

So, I couldn\'t help noticing while demonstrating Chrome\'s DOM browser thing to my brother, that Google uses a tag.

I know this is

Answer 1

In November 2005, Matt Cutts, a Google software engineer, said:

Google’s home page doesn’t validate and that’s mostly by design to save precious bytes. Will the world end because Google doesn’t put quotes around color attributes? No, and it makes the page load faster.

Source: Google Blogoscoped - Matt Cutts, Google’s Gadgets Guy (Interview)