CSS -> responsive webdesign

/*responsive design*/
	/* Small devices (tablets, 768px and up) */
	@media only screen and(max-width:768px){

	}

	@media only screen and(min-width:769px){

	}
	/* Medium devices (desktops, 992px and up) */
	@media only screen and (max-width:908px) {

	}

	/* Large devices (large desktops, 1200px and up) */
	@media only screen and (min-width: 1200px) {

	}

	/* styles for MacBook Pro-sized screens and larger */
	@media only screen and (min-width: 1440px) {

	}