header, footer {
  color: white;
  background-color: #213643;
}
nav {
  background-color: #728B96;
}
h1, h2, h3 {
 font-family: "Trebuchet MS", "Lucida Grande", Tahoma, sans-serif;
}
body {
 font-family: Georgia, Cambria, "Times New Roman", serif;
}