We've left a big amount of open space in the header. From the very start, I knew this would be be for CSS-Tricks primary sponsor, Treehouse. In this screencast we start designing what the advertisement for them will be like. We're actually really lucky here in that I have a relationship with Treehouse such that I can design the ad myself and do whatever works for CSS-Tricks up there and they'll probably be cool with it (not that I'm opposed to their feedback, of course!).
What's cool about this ad is that we can use real web text, which will look nice and sharp (much sharper than text in images normally looks).
It's also a bit tricky because that open space up top will changes as the screen size on different devices changes. But we'll cross that bridge when we get to it.