body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}
header, footer {
  background-color: #003366;
  color: white;
  padding: 1em;
  text-align: center;
}
nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
}
main {
  padding: 2em;
}
form input, form select, form textarea {
  display: block;
  margin-bottom: 1em;
  width: 100%;
  max-width: 400px;
}
