body {
  font-family: Arial;
  padding: 20px;
  background: #f5f5f5;
}

input {
  display: block;
  margin: 10px 0;
  padding: 8px;
  width: 250px;
}

button {
  padding: 10px 20px;
  background: green;
  color: white;
  border: none;
  cursor: pointer;
}

.menu a {
  display: inline-block;
  padding: 10px;
  background: blue;
  color: white;
  text-decoration: none;
}