[CSS] Div mit vesten größen auf unterschiedlichen auflösungen zentrieren

*{
	margin: 0px;
	padding: 0px;
}


#Kopf {
	height: 100px;
	background-color: blue;
}


#Dach{
	position:absolute;
	left:452px;
	height: 200px;
	width: 800px;
	background-image: url("Bilder/Dach.png");
	background-repeat: no-repeat;
}


#Kinderzimmer {
	position:absolute; 
	top: 70px;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	left: 340px;
	background-color:violet;
}


#Haus {
	position:absolute;
	margin-top:200px;
	border: 2px solid black;
	left: 450px;
	height: 500px;
	width: 800px;
	background-color: green;
}


#Bad {
	position:absolute;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	left: 110px;
	top: 100px;
	background-color: red;
}


#Schlafzimmer {
	position:absolute;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	left: 340px;
	top: 100px;
	background-color:yellow;
}


#Büro {
	position:absolute;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	right: 110px;
	top: 100px;
	background-color:blue;
}


#Küche {
	position:absolute;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	left: 110px;
	top: 300px;
	background-color: grey;
}


#Wohnzimmer {
	position:absolute;
	height: 100px;
	width: 120px;
	border: 1px solid black;
	right: 110px;
	top: 300px;
	background-color: orange;
}


#Tür {
	position:absolute;
	height: 200px;
	width: 120px;
	border: 2px solid black;
	left:340px;
	top: 298px;
	background-color: brown;

}