Answer:
Neoclassical style was about progress through reason, and Baroque was about drama and exuberance.
It is the border that is around the original art piece itself. So the artwork is either placed on a board that is then cut 1/2 an inch around the artwork itself. Or in other cases the canvas, paper, etc is masked off 1/2 an inch around the edge of the paper.
Hope this helps!
I think he was inspired to create art himself from the classical arts but i'm not 100% sure because this was one of the things i didn't research because when i did nothing came up about how he was inspired. so sorry if i'm wrong.