title: Highcharts dashed line on x axis not going all the way across
body: <p>I have this highchart's jsfiddle and I want the dashed line to go all the way across the graph from 0-10.I have tried this out on a different graph called scatter and it works I want it to work on the type column graph. How do I do this? Is there something in the highcharts api that I am missing?</p>
  
  <p><a href="https://jsfiddle.net/arielkotch/n9dk126y/1/" rel="nofollow noreferrer">https://jsfiddle.net/arielkotch/n9dk126y/1/</a></p>
  
  <pre><code>Highcharts.chart('container', {
  chart: {
      type: 'column',
  renderTo:'#container'
  },
  title: {
      text: ''
  },
  xAxis: {
      categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
  },
  yAxis: {
      min: 0,
      title: {
          text: 'Total fruit consumption'
      },
      stackLabels: {
          enabled: true,
          style: {
              fontWeight: 'bold',
              color: (Highcharts.theme &amp;&amp; Highcharts.theme.textColor) || 'gray'
          }
      }
  },
  tooltip: {
      headerFormat: '&lt;b&gt;{point.x}&lt;/b&gt;&lt;br/&gt;',
  },
  plotOptions: {
      column: {
          stacking: 'normal',
  
      }
  },
  series: [{
          name: 'John',
          borderColor: '#0000FF',
          color: '#FFFFFF',
          data: [5, 3, 4, 7, 2]
      }, {
          name: 'Jane',
          borderColor: '#0000FF',
          color: '#0000FF',
          data: [2, 2, 3, 2, 1]
      },
      {
  
          //5-width
          //height 
          data: [
              [4, 10],
              [0, 10]
          ],
          lineWidth: 2,
          dashStyle: "Dash",
          lineColor: 'black',
          type: 'scatter',
          marker: {
              enabled: false
          },
          showInLegend: false,
          enableMouseTracking: false
      },
      {
          data: [
              [0, 20]
          ],
          lineWidth: 2,
          dashStyle: "Dash",
          lineColor: 'black',
          type: 'scatter',
          marker: {
              enabled: false
          },
          showInLegend: false,
          enableMouseTracking: false
      }
  ]
  });
  </code></pre>