Build an adaptive site using CSS 3 media queries. Thanks to CSS 3 and the new media query syntax, you can build a site that automatically adapts its layout to fit the screen size of your visitors.

I have mobile media queries whose *sole purpose* is to make the font-size the same in landscape and portrait modes. Hence, for the iPhone, @media only ...

While using JavaScript to load CSS might seem a bit strange, even if you use @media queries you’re still going to need some kind of polyfill (usually JavaScript-based) to handle those browsers ...