.div-alert{display:none;text-align:center;height:150px;position:absolute;margin-left:300px;z-index:15;width:400px;height:200px;}.table-alert{background:white;height:150px;width:400px;border:1px solid black;}.div-alert-big{display:none;text-align:center;position:absolute;margin-left:171px;z-index:15;width:600px;height:200px;}.table-alert-big{background:white;width:600px;border:1px solid black;}