title: HTML Form-Select: behavior using Keyboard
body: <p>I've a mysterious problem. I've built a browser-based application for a customer who prefers to use the keyboard - no mouse, no touch panel. 
  I have a simple HTML-Form like this which contains some times:</p>
  
  <pre><code>&lt;input tabindex="1" name="abc" type="text" /&gt;
  &lt;select tabindex="2" name="efg"&gt;
  &lt;option value="10:00:00"&gt;10.00&lt;/option&gt; 
  &lt;option value="11:00:00"&gt;11.00&lt;/option&gt; 
  &lt;option value="12:00:00"&gt;12.00&lt;/option&gt; 
  &lt;option value="..."&gt;up to 24&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>now my customer recognized that it's not possible to select the "11.00" option using keyboard. E.g. after hitting "TAB" and jumping to "select" you can enter "10" on the numblock of your keyboard and the option "10.00" is selected. It's possible on any time, except "11.00" and "22.00". Hitting the key "1" or "2" twice the pointer always jumps to the next option (e.g: twice "1" -> 12.00 is selected)
  I've checked this behavior on any major browser under Linux and Windows: Everywhere the same issue. </p>
  
  <p><a href="https://jsfiddle.net/hhvyt66m/" rel="nofollow">jsFiddle</a></p>
  
  <p>Is there an option to fix the problem? </p>