#top_left {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 300;
}



#top_right {
	position: fixed;
	top: 0;
	right: 0;
	z-index: 300;
	
}	

#bottom_left {
	position: fixed;
	bottom: 0;
	left: 0;
	z-index: 300;
}

#bottom_left img {
	display: block;
	margin: 0;
	padding: 0;
}

#bottom_right {
	position: fixed;
	bottom: 0;
	right: 0;
	z-index: 300;
}

#top_left img, #top_right img, #bottom_left img, #bottom_right img {
	display: block;
	margin: 50;
	padding: 50;
}