Embedded dashboard size / styling

Hi,

we’ve embedded some metabase dashboards in to our website backend but we have not used the full width of the dashboard and that messes up a few things. We are using the iframeresizer, but we are not able to get rid of the whitespace in the screenshots below. Anybody know how to do this? Normally the width of the dashboard should be adjusted and the iframe border should be to the left of my red square in the bottom picture.

I normally just design the dashboard to fill the full width. Not sure if there’s an alternative or why you couldn’t do the same though.