body {
  background: url("bg.png") no-repeat center center fixed;
  background-size: cover;
  color: #f8f8f8;
  font-family: 'Segoe UI', sans-serif;
  margin: auto;
  padding: 30px;
  max-width: 1000px;
  line-height: 1.8;
}

h1, h2 {
  color: #ff9800;
  text-align: center;
}

.intro {
  text-align: center;
  font-size: 1.1em;
}

a {
  color: #4fc3f7;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.section {
  margin-bottom: 40px;
}

ul.multi-column {
  columns: 2;
  -webkit-columns: 2;
  -moz-columns: 2;
  margin-top: 30px;
}

ul.single-column {
  columns: 1;
}

li {
  margin-bottom: 10px;
  font-size: 1.1em;
}

footer {
  text-align: center;
  color: #888;
  font-size: 0.85em;
  margin-top: 50px;
}