title: Why isn't `multiple` attribute working with `select` tag as stated in the documentation?
body: <p><a href="http://www.w3.org/TR/html-markup/select.html#select.attrs.multiple" rel="nofollow">Here</a> according to documentation:</p>
  
  <blockquote>
    <p>multiple = "multiple" or "" (empty string) or empty If present,
    indicates that its select element represents a control for selecting
    zero or more options from a list of options. If not present, indicates
    that its select element represents a control for selecting a single
    option from a list of options.</p>
  </blockquote>
  
  <p>As the documentation says <code>....represents a control for selecting zero or more options from a list of options....</code> why can't I select more than one options at the same time in <a href="http://jsbin.com/pajuteyafu/edit?html,output" rel="nofollow">this</a> example ?</p>
  
  <p>Code I am having problem with is:</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
  &lt;title&gt;Untitled Document&lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;form id="form1" name="form1" method="get" action="display.php"&gt;
    &lt;table width="300" border="1"&gt;
      &lt;tr&gt;
        &lt;td&gt;&lt;label&gt;Multiple Selection &lt;/label&gt;&amp;nbsp;&lt;/td&gt;
        &lt;td&gt;
        &lt;select name="select2" size="10" multiple="multiple" tabindex="1"&gt;
          &lt;option value="11"&gt;eleven&lt;/option&gt;
          &lt;option value="12"&gt;twelve&lt;/option&gt;
          &lt;option value="13"&gt;thirette&lt;/option&gt;
          &lt;option value="14"&gt;fourteen&lt;/option&gt;
          &lt;option value="15"&gt;fifteen&lt;/option&gt;
          &lt;option value="16"&gt;sixteen&lt;/option&gt;
          &lt;option value="17"&gt;seventeen&lt;/option&gt;
          &lt;option value="18"&gt;eighteen&lt;/option&gt;
          &lt;option value="19"&gt;nineteen&lt;/option&gt;
          &lt;option value="20"&gt;twenty&lt;/option&gt;
        &lt;/select&gt;
        &lt;/td&gt;
      &lt;/tr&gt;
      &lt;tr&gt;
        &lt;td&gt;&amp;nbsp;&lt;/td&gt;
        &lt;td&gt;&lt;input type="submit" name="Submit" value="Submit" tabindex="2" /&gt;&lt;/td&gt;
      &lt;/tr&gt;
    &lt;/table&gt;
  &lt;/form&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p><strong>Also, I am using Google Chrome.</strong></p>