Text and code provided under a Creative Commons Attribution license, CC-BY. (c) Lorena A. Barba, Olivier Mesnard, 2014. Thanks: NSF for support via CAREER award #1149784.Please ignore the cell below. It just loads our style for the notebook.
from IPython.core.display import HTML
def css_styling():
    styles = open('../styles/custom.css', 'r').read()
    return HTML(styles)
css_styling()