The columns should probably break down and resize to 100% for mobile devices - your 420px container. I'm not sure what will fit in a the one, two, and three wi

The columns should probably break down and resize to 100% for mobile devices - your 420px container. I'm not sure what will fit in a the one, two, and three width columns... possibly an image. But the wrapping text in each column for the 420px container is going to look a bit off.