How to set width of htmlb components in % units, instead of pixels

Hi,

as one can set the width of columns in self defined pages in % units, I wonder if this is possible for different htmlb components to (especially for broad ones like IsolatedHtmlContainer). The Control API only mentions a width attribute, but does not however specify how to set it.

I am using PDK 5.0.5 with SDK 1.3.1

Thx for any comment!

Matthias