ElementStacks

HTML

<script src="http://highcharts.com/js/testing.js"></script>
<div id="container" style="height: 400px"></div>

JavaScript

var chart = new Highcharts.Chart({
    chart: {
        renderTo: 'container',
        title : {text:'Threshold - equals case'}
    },
    plotOptions: {
        series: {
            marker: {
                symbol: 'circle'
            },
            states: {
                hover: {
                    enabled: false
                }
            }
        }
    }
    ,
    series:[{
       data: [12,25,27,30,31,42,31,29,30,28,25,17],
                                 },{data :[30,30,30,30,30,30,30,30,30,30,30,30],marker:{enabled:false},showInLegend:false,color:'red'
}]
});