body {
  background-color: #000000;
  
  color: #00FF00;
  
  font-family: "Courier New", Courier, monospace;
  
  margin: 20px;
}

h1, h2, h3 {
  text-decoration: underline;
  text-transform: uppercase;
}

a:link { color: #00FF00; }
a:visited { color: #00AA00; }
a:hover { background-color: #00FF00; color: #000000; }


.container {
  border: 2px outset #00FF00;
  padding: 15px;
  max-width: 800px;
}