Conditional CSS & Updates

Hi,

I have a Conditional CSS block that calls isPortrait() at runtime and
correctly renders the right rule based on its return value. My problem
is that I cannot figure out how to get the condition to be reevaluated
in the future (e.g., when the orientation changes, I would like to
have the conditional CSS evaluated again and the page rendered with
the new CSS). My sample CSS is below.

@if (org.foo.Application.isPortrait()) {
.stats {
border: 3px solid red;
}
} @else {
.stats {
border: 3px solid blue;
}
}

The docs (http://code.google.com/webtoolkit/doc/latest/
DevGuideClientBundle.html#Conditional_CSS) states that these
conditions are evaluated at runtime (which I can confirm), so I am
hoping I can somehow force the re-evaluation to happen again.

Any pointers would be greatly appreciated.

--rth

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