#mainCanvas {
	position:relative;
	width: 100%;
	height: 590px;
}

#excelScreen {
	position:absolute; 
	left:0px;
	top:10px;
	width:500px;
	height:409px;
	border: 1px solid #666666;
}

#peScreen {
	position:absolute; 
	right:0px; 
	top:280px;
	width:499px;
	height:298px;
	border: 1px solid #666666;
}