title: how to use Bootstrap font icons on x-axis lables in highcharts
body: <p>i am trying to put bootstrap font icons in my highchart x-axis labels, i have put that in a fiddle, to that you can see it,</p>
  
  <p><a href="http://jsfiddle.net/sanjaybathre/cJRMx/" rel="nofollow">http://jsfiddle.net/sanjaybathre/cJRMx/</a></p>
  
  <p>i am using .net api of highchart code is:</p>
  
  <pre><code>public static string SocialBarStats()
      {
          Highcharts chart = new Highcharts("chart_SocialBarStats")
              .InitChart(new Chart { DefaultSeriesType = ChartTypes.Bar })
              .SetTitle(new Title { Text = "PAGEVIEWS PER VISIT" })
              .SetXAxis(new XAxis
              {
                  Categories = new[] { "&lt;i class=\"icon-facebook\"&gt;&lt;/i&gt;", "&lt;i class=\"icon-facebook\"&gt;&lt;/i&gt;",
                      "&lt;i class=\"icon-facebook\"&gt;&lt;/i&gt;", "&lt;i class=\"icon-facebook\"&gt;&lt;/i&gt;", "&lt;i class=\"icon-facebook\"&gt;&lt;/i&gt;" },
                  Title = new XAxisTitle { Text = string.Empty }
              })
              .SetYAxis(new YAxis
              {
                  Min = 0,
                  Title = new YAxisTitle
                  {
                      Text = "",
                      Align = AxisTitleAligns.High
                  }
              })
              .SetTooltip(new Tooltip { Formatter = "function() { return ''+ this.series.name +': '+ this.y +' millions'; }" })
              .SetPlotOptions(new PlotOptions
              {
                  Bar = new PlotOptionsBar
                  {
                      DataLabels = new PlotOptionsBarDataLabels { Enabled = true }
                  }
              })
              .SetLegend(new Legend
              {
                  Enabled = false
              })
              .SetCredits(new Credits { Enabled = false })
              .SetSeries(new[]
                         {
                             new Series { Name = "Facebook", Data = new Data(new object[] { 2.5 }), Color = System.Drawing.Color.FromName("'#4c66a4'")},
                             new Series { Name = "Pinterest", Data = new Data(new object[] { 1.2 }), Color = System.Drawing.Color.FromName("'#cc181e'") },
                             new Series { Name = "Youtube", Data = new Data(new object[] { 1.8 }), Color = System.Drawing.Color.FromName("'#a825a9'") },
                             new Series { Name = "Twitter", Data = new Data(new object[] { 2.3 }), Color = System.Drawing.Color.FromName("'#129fca'") },
                             new Series { Name = "Google Plus", Data = new Data(new object[] { 2.9 }), Color = System.Drawing.Color.FromName("'#00933B'") }
                         });
  
          return chart.ToHtmlString();
      }
  </code></pre>