In the specification config.xml of a wirecloud widget, we can set initial width and height
<Platform.Rendering width="x" height="y"/>
When I put in something like width 300 and height = 80, the widget gets much bigger and overflows the screen. In the specification I only see that the width field defines the width.
I see in example widgets values like 5 and 8. So what unit is the width and height?