
          <a href="demo-1.html" class="nav-item">D1 - 3D</a>
          <a href="demo-2.html" class="nav-item">D2 - Audio</a>
          <a href="demo-3.html" class="nav-item">D3 - Multiple</a>
          <a href="demo-4.html" class="nav-item">D4 - Camera</a>
          <a href="demo-5.html" class="nav-item active">D5 - Video</a>
          <a href="demo-6.html" class="nav-item">D6 - Emoji</a>
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