#map_canvas {
	height: 500px;
	width: 100%;
	margin:10px auto;
}

#map1_canvas {
	height: 500px;
	width: 100%;
	margin:10px auto;
}

#map2_canvas {
	height: 500px;
	width: 100%;
	margin:10px auto;
}

#map3_canvas {
	height: 500px;
	width: 100%;
	margin:10px auto;
}