Hello, I am working in reactive and I want to make a graph that shows in a Popup that is 100% width and 100% height.

I tried to change the properties of the popup in css and only height is working while width isn't working at all:

I tried to do it with several additional element and it still didn't work? In addition I tried to enclose it with a container and style her and this also didn't work. I checked some forums and I see that width cannot be changed because it is has limits. Please help if u are able. 

Thank u very much.