title: The jQuery UI Datepicker doesn't Appear
body: <p><a href="https://jqueryui.com/datepicker/" rel="nofollow">https://jqueryui.com/datepicker/</a><br>
  When I use the sourcecode below and paste it into my html file:</p>
  
  <pre><code>&lt;!doctype html&gt;
  &lt;html lang="en"&gt;
  &lt;head&gt;
    &lt;meta charset="utf-8"&gt;
    &lt;title&gt;jQuery UI Datepicker - Default functionality&lt;/title&gt;
    &lt;link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css"&gt;
    &lt;script src="//code.jquery.com/jquery-1.10.2.js"&gt;&lt;/script&gt;
    &lt;script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"&gt;&lt;/script&gt;
    &lt;link rel="stylesheet" href="/resources/demos/style.css"&gt;
    &lt;script&gt;
    $(function() {
      $( "#datepicker" ).datepicker();
    });
    &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
  </code></pre>
  
  <p>Date: </p>
  
  <p>
  </p>
  
  <p>The menu doesn't appear.</p>
  
  <p>What is wrong?</p>
  
  <p>Thanks!</p>
  
  <p>I'm aware that <code>href="/resources/demos/style.css"</code> doesn't work because I dont have the file</p>