CSS scrollbars and a problem

I have a custom browser that I use to display my construct 2 games. Only hassle is that when the game screen is same size as the browser client the browser displays scrollbars - which look horrid.

I have got around it by adding

<style>

body {width:100%; height:100%; overflow:hidden, margin:0}

html {width:100%; height:100%; overflow:hidden}

</style>

to the header of the index.html

But that is a bit of a hassle to do every time.

Is there a way I can add that code to the construct 2 project? I tried adding it in as an import to CSS but it didn't work.

Any ideas?