body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  text-align: center;
}
header {
  background-color: #2d89ef;
  color: white;
  padding: 60px 20px;
}
.cta-button {
  background-color: #fff;
  color: #2d89ef;
  padding: 10px 25px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 16px;
}
main {
  padding: 40px 20px;
}
form input[type="email"] {
  padding: 10px;
  width: 250px;
  margin: 10px 0;
  border-radius: 4px;
  border: 1px solid #ccc;
}
form button {
  padding: 10px 20px;
  background-color: #2d89ef;
  color: white;
  border: none;
  border-radius: 4px;
}
footer {
  margin-top: 40px;
  padding: 20px;
  background-color: #eee;
}