Publish to Flash/HTML5 and Only Scale Down HTML5 Version

Is it possible to publish a Storyline course to Flash and HTML5 and only have the HTML5 version scale down a bit?

I see this line in story_html5.html . . .

<meta name="viewport" id="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/>

 . . . can I change it to this to scale the HTML5 version down to 80%?

<meta name="viewport" id="viewport" content="width=device-width, initial-scale=0.8, maximum-scale=0.8, user-scalable=no"/>