body {
  color: #222;
  font-family: sans-serif;
  margin: 0 auto;
  max-width: 920px;
  padding: 1rem;
}

h1 {                      
  margin-top: 0;          
  font-size: 1.5rem;      
                    
  small {           
    display: block; 
    font-size: 1rem;
  }                 
}                   

header {
  margin-bottom: 1rem;
}

footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.8rem;
  color: #333; 
}

a {
  color: #00e;
  text-decoration: none;
}

article {
  margin: 0 auto;
  max-width: 720px;