body {
    display: flex;
    flex-flow: column;
    font-family: monospace;
}
#content {
   width: 400px; 
   max-width: 90%;
   margin: 20px auto;
   border: 4px solid #333;
   padding: 8px;
}
#content h1 {
    padding: 12px 0px;
    margin: 12px 0px;
    text-align: center;
}
#content p {
    padding: 8px 0px;
    margin: 0px 0px 8px 0px;
}