The [Twitter Bootstrap “fluid grid”](http://twitter.github.com/bootstrap/scaffolding.html#fluidGridSystem) was broken:

http://cl.ly/image/3p3J17072A1u
http://cl.ly/image/352Q330h2Z06
http://cl.ly/image/1D242g1f3R0c

And I thought it was not intended since the new website width is set to 900px, which is not compatible with the [Twitter Bootstrap layout features](http://twitter.github.com/bootstrap/scaffolding.html#responsive). That said, a responsive design could be easily added!