Example game mechanic embedded in web page as 300px x 250px ad unit.

<iframe id="boomiFrame"
	src="campaign-URL"
	width="300"
	height="250">
</iframe>


<style>
#boomiFrame {
	width:100%;
	height: auto;
	max-width: 300px;
	min-width: 300px;
	min-height: 250px;
	display: block;
	margin-top: 1em;
	margin-left: auto;
	margin-right: auto;
	border: none;
}

@media all and (min-width: 768px) {
  	#boomiFrame{
  		width:100%;
  		height: auto;
  		max-width: 300px;
  		min-height: 250px;
	}
}
</style>