Controls and mp4 video have wrong size when resized

Hi

I'm trying to place a video in a HTML5 banner using the video component, but when I resize the component to fit the canvas, the controls and the video resize to a different size when I preview the banner/video. The controls are very small, and show up in the top left corner of the video, and the video doesn't have the right size.

I haven't been able to figure out how to resize my video, so it fits my canvas and don't get really small controls and wrong size video.

Hope you can help.

Thanks!