body {
  font-family: Arial, Helvetica, sans-serif; 
  max-width: 40em;
  line-height: 20px;
}

#content {
  margin-top: 20px;
  margin-left: 20px;
  padding: 10px 20px;
  border-width: 1px;
  border-style: solid;
  border-color: #000;
}