body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}
header {
  background-color: #111;
  color: white;
  padding: 20px;
  text-align: center;
}
main {
  padding: 20px;
}
form {
  margin-top: 20px;
}
input[type="text"] {
  padding: 10px;
  width: 70%;
  margin-right: 10px;
}
button {
  padding: 10px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  cursor: pointer;
}
footer {
  background-color: #111;
  color: white;
  text-align: center;
  padding: 10px;
}