    <i
              class="material-icons res"
              onclick="resetO()"
              title="Reset Opacity"
              >refresh</i
            >
          </div>
          <!--Scale/zoom slider-->
          <div id="zslider" class="slider closed">
            <label for="z" title="Scale"
              ><i class="material-icons ico">straighten</i></label
            >
            <input type="range" min="0" max="2" id="z" value="1" step=".1" />
            <output for="range" id="zPointSize">1×<