body {
  font-family: Arial, sans-serif;
  margin: 20px;
  line-height: 1.6;
}

nav a {
  margin-right: 10px;
  text-decoration: none;
  color: blue;
}

nav a:hover {
  text-decoration: underline;
}

h1 {
  color: darkblue;
}

#app {
  margin-top: 20px;
}