body {
  background-color: white;
  color: black;
  font-family: Arial, sans-serif;
}

.navbar {
  background-color: lightgray;
  overflow: hidden;
}

.navbar a {
  color: black;
  padding: 14px 20px;
  display: inline-block;
  text-decoration: none;
}

.navbar a:hover {
  background-color: #ddd;
}

.button {
  background-color: white;
  color: black;
  border: 1px solid black;
  padding: 10px 20px;
  cursor: pointer;
}