body {
  font-family: "Segoe UI", sans-serif;
  background: #f4f1ec url("../images/bg.jpg") no-repeat center top;
  background-size: cover;
  color: #333;
  margin: 0;
  padding: 0;
}
header {
  background-color: rgba(255, 255, 255, 0.9);
  padding: 2em;
  text-align: center;
}
main {
  padding: 2em;
  background-color: rgba(255, 255, 255, 0.85);
}
footer {
  text-align: center;
  padding: 1em;
  font-size: 0.9em;
  background-color: rgba(255, 255, 255, 0.9);
}
a {
  color: #0066cc;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}