open-science-observatory-ui/src/app/chart-components/treemap-highcharts/treemap-highcharts.component.html

<div>
  <highcharts-chart #chart [Highcharts]="Highcharts"
                    [options]="treeMapChartOptions"
                    [ngStyle]="height?{'height': height+'px'} : {'height': '550px'}"
                    style="width: 100%; display: block;">
  </highcharts-chart>
</div>