div#main0 {position: absolute; top: 20em; left: 25%; width: 30%; margin: 1em; padding: 1em 1.5em; border: inset silver 2px; z-index: 5;}
div#main1 {position: absolute; top: 20em; left: 62%; width: 30%; margin: 1em; padding: 1em 1.5em; border: inset silver 2px; z-index: 6;}