title: Setting plotband height
body: <p>I want to reduce the height of plotbands which I am using in chart below.Is it possible to do that with plotbands.</p>
  
  <pre><code>//-------------------------------------------------------
  Highcharts.Renderer.prototype.symbols.line = function(x, y, width, height) {
      return ['M',x ,y + width / 2,'L',x+height,y + width / 2];
  };
  //-------------------------------------------------------
  Highcharts.setOptions({
      chart:{
          type:'bar',
          margin:[5,15,10,100],
      },
      credits:{enabled:false},
      exporting:{enabled:false},
      legend:{enabled:false},
      title:{text:''},
      xAxis:{
          tickLength:0,
          lineColor:'#999',
          lineWidth:1,
          labels:{style:{fontWeight:'bold'}}        
      },
      yAxis:{
          min:0,
          minPadding:0,
          maxPadding:0,
          tickColor:'#ccc',
          tickWidth:1,
          tickLength:3,
          gridLineWidth:0,
          endOnTick:true,
          title:{text: ''},
          labels:{
              y:10,
              style:{
                  fontSize:'8px'
              },
              formatter:function(){
                  if (this.isLast){
                      return this.value + ' %';
                  }
                  else{
                      return this.value;
                  }
              }
          }
      },
      tooltip:{
          enabled:true,
          backgroundColor:'rgba(255, 255, 255, .85)',
          borderWidth:0,
          shadow:true,
          style:{fontSize:'10px',padding:2},
          formatter:function() {
             return this.series.name + ": &lt;strong&gt;" + Highcharts.numberFormat(this.y,2) + "&lt;/strong&gt;";
          }
      },
      plotOptions:{
          bar:{
              color:'#000',
              shadow:false,
              borderWidth:0,
          },
          scatter:{
              marker:{
                  symbol:'line',
                  lineWidth:3,
                  radius:8,
                  lineColor:'#000'
              }
          }
      }
  });
  
  //-------------------------------------------------------
  var chart1 = new Highcharts.Chart({
      chart:{renderTo:'container1'},
      xAxis:{categories:['Title 1']},
      yAxis:{
          max:100,
          labels:{y:10,style:{fontSize:'8px'}},    
          plotBands:[{from:0,to:70,color: 'rgba(103,103,103,.35)'},
                     {from:70,to:85,color: 'rgba(153,153,153,.35)'},
                     {from:85,to:100,color: 'rgba(204,204,204,.35)'}]
      },
      series:[{name:'Measure',pointWidth:10,data:[80]},
              {name:'Target',type: 'scatter',data:[90],}]
  });
  
  //-------------------------------------------------------
  var chart2 = new Highcharts.Chart({
      chart:{renderTo:'container2'},
      xAxis:{categories:['Title 2']},
      yAxis:{
          max:100,
          labels:{y:10,style:{fontSize:'8px'}},   
          plotBands:[{from:0,to:75,color: 'rgba(103,103,103,.35)'},
                     {from:75,to:90,color: 'rgba(153,153,153,.35)'},
                     {from:90,to:100,color: 'rgba(204,204,204,.35)'}]
      },
      series:[{name:'Measure',pointWidth:10,data:[92]},
              {name:'Target',type: 'scatter',data:[95],}]
  });
  
  //-------------------------------------------------------
  var chart3 = new Highcharts.Chart({
      chart:{renderTo:'container3'},
      xAxis:{categories:['Title 3']},
      yAxis:{
          max:100,
          labels:{y:10,style:{fontSize:'8px'}},   
          plotBands:[{from:0,to:50,color: 'rgba(103,103,103,.35)'},
                     {from:50,to:75,color: 'rgba(153,153,153,.35)'},
                     {from:75,to:100,color: 'rgba(204,204,204,.35)'}]
      },
      series:[{name:'Measure',pointWidth:10,data:[64]},
              {name:'Target',type: 'scatter',data:[75],}]
  });
  
  //-------------------------------------------------------
  var chart4 = new Highcharts.Chart({
      chart:{renderTo:'container4'},
      xAxis:{categories:['Title 4']},
      yAxis:{
          max:1000,
          labels:{y:10,style:{fontSize:'8px'},formatter:function(){return this.value;}},   
          plotBands:[{from:0,to:600,color: 'rgba(103,103,103,.35)'},
                     {from:600,to:800,color: 'rgba(153,153,153,.35)'},
                     {from:800,to:1000,color: 'rgba(204,204,204,.35)'}]
      },
      series:[{name:'Measure',pointWidth:10,data:[970]},
              {name:'Target',type: 'scatter',data:[850],}]
  });
  
  //-------------------------------------------------------
  var chart5 = new Highcharts.Chart({
      chart:{renderTo:'container5'},
      xAxis:{categories:['Title 5']},
      yAxis:{
          max:500,tickInterval:100,
          labels:{y:10,style:{fontSize:'8px'},formatter:function(){return this.value;}},   
          plotBands:[{from:0,to:300,color: 'rgba(103,103,103,.35)'},
                     {from:300,to:400,color: 'rgba(153,153,153,.35)'},
                     {from:400,to:500,color: 'rgba(204,204,204,.35)'}]
      },
      series:[{name:'Measure',pointWidth:10,data:[475]},
              {name:'Target',type: 'scatter',data:[450],}]
  });
  //-------------------------------------------------------
  </code></pre>