body {
  font-family: Arial, sans-serif;
  margin: 2em;
  background: #f9f9f9;
}
h1 {
  color: #2c3e50;
}
a {
  color: #2980b9;
  text-decoration: none;
  margin-right: 1em;
}
form label {
  display: block;
  margin: 0.5em 0;
}
button {
  margin-top: 1em;
  padding: 0.5em 1em;
  background: #2980b9;
  color: #fff;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}
button:hover {
  background: #1a5a7a;
}