title: D3 append div with id
body: <p>I want to add a div with a certain id to another div. Is this possible?</p>
  
  <p>My suggestion was following:</p>
  
  <pre><code>&lt;div class="clearfix"&gt;
  &lt;/div&gt;
  
  &lt;script&gt;
  var name = "xy";
  var div = d3.select(".clearfix")
      .append("div#area" + name) 
      ...
  &lt;/script&gt;
  </code></pre>