body {
  font-family: Arial, sans-serif;
  background: #fff;
  margin: 0;
  padding: 40px;
  text-align: center;
}
h1 {
  background-color: #003366;
  color: white;
  padding: 20px;
}
.button {
  display: block;
  width: 90%;
  max-width: 300px;
  margin: 20px auto;
  padding: 15px;
  font-size: 16px;
  background-color: #e6f0fa;
  color: black;
  border: 1px solid #003366;
  border-radius: 8px;
  text-decoration: none;
}