title: Highcharts: XAxis Labels Rotation weird behaviour
body: <p>Refer the fiddle
  <a href="http://jsfiddle.net/9y3zs6ep/" rel="nofollow">http://jsfiddle.net/9y3zs6ep/</a></p>
  
  <pre><code>labels: {
      rotation: 1
  }
  </code></pre>
  
  <p>When I put rotation as 0, the labels are correctly aligned in horizontal position. But when I increase rotation to 1, the labels disappear, and as I increase angle, labels start appearing. How can I get correct alignment for these rotation values?</p>