Remove white space mobile website embedded report

Hello,

I have a report that I'm trying to embed on a wix website and optimize for mobile viewing. When I embed it, however, there is white space on the sides of the report. How can I get rid of this white space or adjust the size of my report so that there is no horizontal scrolling required? (Ideally no vertical scrolling would be needed either). I adjusted the report in Power Bi to have a width of 400 pixels and height of 667 pixels. I then changed the iframe code to reflect these dimensions:

<iframe title="Picklelytics - Total June 4" width="400" height="667" src="https://app.powerbi.com/view?r=eyJrIjoiZTk5YTNiZjItMTQxNS00MWIyLTgwZTktYmI2ODM2N2Q0ZTY0IiwidCI6IjYwYmFmYzQ1LTczYjAtNDQ0ZS1iYzU4LTFlNzUwOTg3N2NmYSJ9&pageName=ReportSectione21c055b9b52d2bb195a" frameborder="0" allowFullScreen="true"></iframe>