body {
  background-color: black;
  color: white;
  font-family: courier;
}

a:link {
  color: lime;
  background-color: transparent;
  text-decoration: none;
}

button {
  border: 4px solid white;
  background-color: black;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  font-family: courier;
}