Contan javascript within a css rounded border container...

On my website, I have a section for GiveAwayOfTheDay.com offering Free software every day.
Website Here

I would like to contain the javascript with a CSS rounded corner container with a white background as I can't modify the javascript.

Here is the javascript:

<div>

	var gaotd_SiteName = "N7AS.com";




<a href="http://www.giveawayoftheday.com">Giveaway of the Day</a>

</div>