Assignment: D3 Event Handling

Implement a click event on the yellow square in this visualization that changes it to red:

Acknowledgments

List here where any code, packages/libraries, text, images, designs, etc. that you leverage come from.

• D3: Data-Driven Documents by Mike Bostock is used for manipulating the DOM to create visualizations.
• Pure CSS responsive "Fork me on GitHub" ribbon by Chris Heilmann is used to create the banner that links back to the source code repository.