title: Extending Area to full width of Chart with Months on x-axis
body: <p>I have this chart: </p>
  
  <p><a href="http://jsfiddle.net/lamarant/KTksk/" rel="nofollow">http://jsfiddle.net/lamarant/KTksk/</a></p>
  
  <p>As you can see, there is space on the left and right side of the two plotted areas. How do I force the plotted areas to take the full width of the chart?</p>
  
  <pre><code>    $('#container').highcharts({
          chart: {
              type: 'area',
              plotBackgroundColor: '#00B417'
          },
          xAxis: {
              categories: ['Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov'],
  .....
  </code></pre>