#extinguisher {
	width: 500px;
	height: 500px;
	border: 1px dashed #000;
	top:200px;
	position: relative;
	/*margin-top: 10%; */
}

#extr_3,
#extr_2,
#extr_1 {
	width: 20px;
	height: 20px;
	position: absolute;
	top: 50%;
	left: 50%;
	background-color: red;
}

#extr_2 {
	background-color: green;
}

#extr_3 {
	background-color: blue;
}