How to access css3 config file for each component

As I understand each component or object in perspective have a css3 file that contain all user setting in it which create by style or position property of that component.
Where can I find this file?
If I have access to this file I can write my own css3 animation commands that need multiple lines to work correctly. I know I can write my css3 code in style section but for animations code that need multiple lines it is not possible:
@keyframes mymove {
from {top: 0px;}
to {top: 200px;}

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