The problem with fluid layouts, summed up in one screenshot

We’ve received quite a few questions about why we changed from a fluid layout to a 960px fixed width layout. There are pros and cons to both approaches, and Smashing Magazine did a great job of explaining those trade-offs in Fixed vs. Fluid vs. Elastic Layout: What’s The Right One For You?

For me, the most important reason to use a fixed layout is that it allows you to have full control over the experience and what the user sees on the screen.

But since a picture is worth a thousand words, I guess you can sum up the problem with fluid layouts with a single screenshot: