body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  text-align: center;
  background-color: #f4f4f4;
}

header {
  background-color: #333;
  color: white;
  padding: 20px;
}

.logo {
  width: 80px;
  height: auto;
}

main {
  padding: 40px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}

footer {
  background-color: #222;
  color: #ccc;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}