tain elements</li>
              <li>Calculate styles on load for this demo</li>
            </ul>
          </section>

          <section>
            <img style="max-width: 33%" src="/images/slides/lightmap1.png" />
            <img style="max-width: 33%" src="/images/slides/lightmap2.png" />
            <img style="max-width: 33%" src="/images/slides/lightmap3.png" />
          </section>

          <section>
            <h2>Background Layering</h2>
            <pre><code>
.myclass {
  background: backg