/* rules for phones */
		@media only screen and (max-width:720px)
		{
			.tablet {display:none;}
			.desktop {display:none;}
		}
		/* CSS rules for tablets */
		@media only screen and (min-width:721px) and (max-width:960px)
		{
			.desktop {display:none;}
			.phone {display:none;}
		}
		/* CSS rules for desktops */
		@media only screen and (min-width:961px)
		{
			.tablet {display:none;}
			.phone {display:none;}
		}