Liferay - Theme influenced by external CSS ?

Hello all,

I have 2 questions that are more or less related :slight_smile:

1/ I was wondering if it is possible to have an external existing non-vaadin-adjusted CSS influence the theme used inside a Vaadin Portlet deployed on Liferay.

2/ On top of that I was wondering if it is possible to decide programmatorically (sp?) which CSS to use based on the installation environment of said Portlet (whether it is Liferay or Blackboard or …)

thanks in advanve for any and all comments!

Pieter