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          <section>
            <h2 class="r-fit-text">What is CSS 3D?</h2>
            <ul>
              <li class="fragment">It's a method of manipulating DOM elements in 3D without any plugins or javascript</li>
              <li class="fragment">You can use transform properties to scale, skew, translate, and rotate DOM elements</li>
              <li class="fragment">Animation can be achieved by using transitions, the same as normal 2D CSS</li>
              <li class=