Is there any way to fit the Report/Dashboard to our windows?

Hello,

We are using JavaScript API to integrate the Power BI reports in our .net web application. As provided in the demo (https://microsoft.github.io/PowerBI-JavaScript/demo/code-demo/index.html#), we are using div to render reports/dashboards. We are supposed to define the height of the reports/dashboards in pixels but we want them to use the available space on being rendered.

Is there any way to fit the report/dashboard to our windows? 

Thanks