body {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei", sans-serif;

  background:
    linear-gradient(
      rgba(255,255,255,0.5),
      rgba(255,255,255,0.5)
    ),
    url("/images/lida.jpg") no-repeat center center;

  background-size: cover;
  background-attachment: fixed;
}

h1, ul, p {
  color: #222;
  text-shadow: 0 1px 3px rgba(255,255,255,0.4);
}

a {
  color: #2aa9ff;
}