css
body {
  background-color: #ff0;
  color: #000;
  font-size: 18px;
  font-family: monospace;
}

h1 {
  border: solid 6px #000;
  padding: 4px;
  margin: 0;
  text-shadow: 2px 2px 2px #000;
}

h2 {
  border: solid 4px #f00;
  padding: 4px;
  margin: 0;
  text-shadow: 1px 1px 1px #f00;
}

h3 {
  border: solid 6px #0ff;
  padding: 4px;
  margin: 0;
  text-shadow: 2px 2px 2px #0ff;
}

p {
  margin: 0;
}

a {
  color: #f00;
}

a:hover {
  text-decoration: none;
}