text: require("./../lib/env-js/envjs/node");
  require("./../lib/sizzle/sizzle");
  require("./../d3");
  
  d3.select("body").append("div");
  d3.select("body").insert("span", "div");
  
  console.log("insert span before div:");
  console.log("  ", document.body.innerHTML);
  console.log("");
  
  d3.select("body").insert("b", "div");
  
  console.log("insert b before div:");
  console.log("  ", document.body.innerHTML);
  console.log("");
  
  d3.select("body").insert("a", "span");
  
  console.log("insert a before span:");
  console.log("  ", document.body.innerHTML);
  console.log("");
  