body {
  padding: 20px;
  text-align: center;
  font-size: 1.2em;
}

h1 {
  font-size: 1.6em;  
}

output {
  display: block;
  line-height: 1.4;
}

#article {
  text-align:left;
  padding: 10% 10% 0;
}