body {
  max-width: 1200px;
  min-width: 600px;
  margin-left:auto;
  margin-right:auto;
  font-family: Verdana,Arial,Helvetica,sans-serif;
  font-size: 100%;
  background-color: white;
  color: black;
  text-align: center;
}
table.form {
  width: 50%;
  margin-left:auto;
  margin-right:auto;
  border-collapse: Collapse; 
}
td.form {
  padding: 10px 3px 10px 3px;
  border: 2px solid;
}