body {
	background-image: url("https://www.asr42.ch/assets/ASR42_Logo_Background.jpg");


	/* doesn't allows the image to repeat */
	background-repeat: no-repeat;

	/* scales the image proportionally to cover the background */
	background-size: cover;

	/* centers the image in the center of the background */
	background-position: center;

	/*sets the height of the body to 100viewport height */
	height: 40vh;
}