harts you can grab and start using off the shelf.
                For various projects I've tried to use them and generally ran into problems such as them
                requiring the data to be laid out in a certain way, or missing functionality I needed
                without a good way to extend them.  Out of this frustration, C3 was born.
            </p>
            <p>
                C3 is a collection of data visualizations leveraging the D3 toolbox.
                It provides these charts with a