Sizing a Flex Container View to the screen size

I'm trying to play with flex containers to test sizing on difference devices.

How do I "full screen" the perspective view? I'd like to tie the width and height to the device width and height. Thank you.

If your flex containers are in flex views then the view should expand to the browser window extents. If the flex container is not filling the view then check that you have its POSITION.grow : 1.

If that's not the problem then please provide more details.