arty" id="video_2_warn">(Clicking the image will load a video from YouTube)</span>

              <img id="iframe-placeholder-transforming"
                   border="1px"
                   class="yt__placeholder video_3"
                   src="/{{version}}/images/transforming_part_1-iframe-placeholder.png"
                   onclick="loadVideo('iframe-placeholder-transforming', 'SYmqwvE8umM?rel=0&showinfo=0end=557', 'video_3')"/>
              <span class="third-party" id="video_3_warn">(Clicking the ima