body {
  background-color: black;
  font-family: 'Cutive Mono', monospace;
  color: gray;

  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;     
  margin-top: -200px;
  padding: 50px;     
  text-align: center;
  flex-direction: column;
}

h1 {
  margin-bottom: 50px;
}

nav {
  margin-top: -30px;
}

nav h3 {
  margin: 10px 0; /* space between rows */
}

nav a {
  display: inline-block;
  width: 220px;         
  height: auto;
  padding: 10px;
  line-height: normal;

  border: 2px solid blue;
  border-radius: 0;
  margin: 0 10px 25px 10px;
  color: blue;
  font-weight: bold;
  text-decoration: none;
  text-align: center;
  transition: all 0.3s ease;
}

nav a:hover {
  background-color: blue;
  color: white;
  text-decoration: none;
}