@media only screen and (max-width: 1350px) {
    .center {
	width: 80%;
	}
	.centerdienst {
	width: 80%;
	}
	.centerover {
	width: 80%;
	}
	.centercontact {
	width: 80%;
	}
	.bovencenter {
	width: 80%;
	}
}

@media only screen and (max-width: 800px) {
  .background {
	height: 200px;
	}
	.background2 {
		height: 100px;
	}
	.centercontact {
	height: 620px;
	}
	.center {
	height: 820px;
	}
	.centerdienst {
	height: 2800px;
	}
	.centerover {
	height: 2000px;
	}
	.centercontact {
	height: 620px;
	}
}

@media only screen and (max-width: 500px) {
	.center {
	height: 820px;
	}
	.centerdienst {
	height: 3400px;
	}
	.centerover {
	height: 3100px;
	}
}