style.css

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

#gamescreen {
	position:relative;
	width:100%;
	height:100%;
}

#sky {
	position:absolute;
	top:0;
	background-image:url("assets/sky.png");
	background-color:#4ec0ca;
	background-repeat:repeat-x;
	background-position:0px 100%;

	
	width:100%;
	height:80%;
}

#flyarea {
	position:absolute;
	bottom:0;
	width:100%;
	height:420px;
}

#ceiling {
	position:absolute;
	background-image:url("assets/ceiling.png");
	width:100%;
	height:16px;
}

#land {
	position:absolute;
	bottom:0;
	background-image:url("assets/land.png");
	background-repeat:repeat-x;
	background-color:#ded895;
	background-position:0px 0px;
	width:100%;
	height:20%;
}

#bird {
	position:absolute;
	left:60px;
	bottom:200px;
	background-image:url("assets/bird.png");
	width:34px;
	height:24px;
}