CSS is almost magical it’s so powerful.  If you’re familiar with it, editing this file will be easy and you can certainly improve on some of my inline CSS work.  If you aren’t comfortable with CSS I’d strongly recommend checking it out further.  There are some great tutorials on the web including-
  1. ✴W3 Schools
  2. ✴EchoEcho
  3. ✴HTML Net
 
Changing the CSS
Exhibit courtesy of MIT           -               Tutorial by Tom Woodward                 -                   CC License