Float Right problem on IE7

[NilsLindenberg]

As reported by Will Merrell:

I have noticed a problem with a float right box we are using. On IE7 the box spreads across the whole page. On Firefox and Opera it works as I would expect.

One solution that sort of fixed the problem was to add a width to the floatr css rule. That caused IE7 to render it the same way as the others rendered it. The problem with that solution is that then all right floats are the same size.