<iframe>
  <div id="container" style="width:100%; height:400px;"></div>
  <script src="https://code.highcharts.com/highcharts.js"></script>

  <script>
  document.addEventListener('DOMContentLoaded', function () {
    Highcharts.chart('container', {
        chart: {
            type: 'bar'
        },
        title: {
            text: 'Cases by Client'
        },
        xAxis: {
			
            categories: ['Client 1', 'Client 2']
        },
        yAxis: {
			min: 0,
			tickInterval: 1,
            title: {
                text: 'Number of Cases'
            }
        },
        series: [{
            name: 'Current Month',
            data: [1, 3],
        }, {
            name: 'Current Year',
            data: [2, 5],
        }],
    });
});
	</script>
</iframe>