Demonstration of DOM manipulation using D3
For NICAR Beginning D3, 2017
forked from darlacameron's block: 1. DOM Manipulation
Modified http://d3js.org/d3.v4.min.js to a secure url
https://d3js.org/d3.v4.min.js
https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js