I just discovered a funny thing about copy and paste.
Go to Diablo 3’s website (http://us.battle.net/en/) and navigate to the bottom, you can see:
©2012 Blizzard Entertainment, Inc. All rights reserved
It is all upper-case text in the webpage, but after I copy and paste,
it’s automatically converted to camel case. How can this be done? Is it done through CSS?
Yes, it’s just CSS. Specifically
text-transform:uppercase.HTML
CSS