How can I resize content to fill entire composition size 1080 x 1920
Hi Everyone,
First post here and relatively new to after effects so apologies if any of my wording is wrong.
I have an animation that Is currently 1920 x 1080 but I want the composition size to be 1080 x 1920 (mobile display orientation). I have changed the comp size to 1080 x 1920 the issue now is that there are black bars at the top and bottom of the animation where it is not large enough.
Does anyone know how I can resize all of the animation and effects proportionally so it take up all of the space on the new vertical layout?
I have looked at other posts here and cannot seem to get it to do what I need, any assistance would be greatly appreciated.
Thanks!

