Example 2.2

<html>
  <head>
    <script src="https://d3js.org/d3.v4.min.js"></script>
  </head>
  <body></body>
  <script>
  d3.select("body")       // Selected the BODY 
  .append("div")          // Create the DIV and it is the selection
  .style("background-color","red") //Change the DIV style
  .append("span")         // Append the SPAN inside the DIV and select
  .style("color","green") //Change the text color of the SPAN
  .text("hi");            // Change the text of the SPAN
  </script>
</html>

// Code goes here

/* Styles go here */