body{margin:0;padding:0;margin-left:auto;margin-right:auto;}@media screen and (min-width: 900px) {body{width:900px;}}@media screen and (max-width: 899px) {body{width:100%;}}.pad{padding:10px;}@media all and (max-width: 727px) {#adbig{display:none;}table.tgrid td{border:solid 1px black;padding:1px;font-size:90%;}table.tgrid th{border:solid 1px black;padding:1px;font-size:90%;}}@media (min-width: 728px) {#adsmall{display:none;}}