body {
  margin: 0;
  padding: 0;
  min-width: 768px;
  min-height: 1000px;
  background-color: #deded1;
  text-align: center;
}
table.center {margin-left:auto; margin-right:auto;}
div.center {
  width: 768px ;
  margin-left: auto ;
  margin-right: auto ;
}