div {
  margin: 0 auto;
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
}

h1 {
  font-size: 2rem;
}

p {
  font-size: 1.2rem;
}

ul {
  padding: 0;
  margin: 0;
}

ul, li {
  list-style: none;
}

li {
  display: inline-block;
}

a { 
  font-size: 3rem;
  text-decoration: none;
  display: inline-block;
  background: black;
  color: white;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 8px;
}

a:hover {
  background: grey;
}