XF 2.1 Adding CSS Motion Path to Header

[yco]

Hi everyone, i d like to try add some css codes to the header section that has some motion..
is it possible if so do i need custom css codes to implement something like this?

https://lea.verou.me/2011/02/checkerboard-pattern-with-css3/ ..

cheers..

 

[yco]

..thanks anyway.