code: function(btn) {
      if (btn.attr('data-open') !== "true") {
        return;
      }
  
      var offsetX, offsetY, scaleFactor;
      var windowWidth = window.innerWidth;
      var windowHeight = window.innerHeight;
      var btnWidth = btn.attr('data-origin-width');
      var btnBottom = btn.attr('data-origin-bottom');
      var btnLeft = btn.attr('data-origin-left');
      var anchor = btn.find('> .btn-floating').first();
      var menu = btn.find('> ul').first();
      var backdrop = btn.find('.fab-backdrop');
      var fabColor = anchor.css('background-color');
  
      offsetX = btnLeft - (windowWidth / 2) + (btnWidth / 2);
      offsetY = windowHeight - btnBottom;
      scaleFactor = windowWidth / backdrop.width();
  
  
      // Hide backdrop
      btn.removeClass('active');
      btn.attr('data-open', false);
      btn.css({
        'background-color': 'transparent',
        transition: 'none'
      });
      anchor.css({
        transition: 'none'
      });
      backdrop.css({
        transform: 'scale(0)',
        'background-color': fabColor
      });
      menu.find('> li > a').css({
        opacity: ''
      });
  
      setTimeout(function() {
        backdrop.remove();
  
        // Set initial state.
        btn.css({
          'text-align': '',
          width: '',
          bottom: '',
          left: '',
          overflow: '',
          'background-color': '',
          transform: 'translate3d(' + -offsetX + 'px,0,0)'
        });
        anchor.css({
          overflow: '',
          transform: 'translate3d(0,' + offsetY + 'px,0)'
        });
  
        setTimeout(function() {
          btn.css({
            transform: 'translate3d(0,0,0)',
            transition: 'transform .2s'
          });
          anchor.css({
            transform: 'translate3d(0,0,0)',
            transition: 'transform .2s cubic-bezier(0.550, 0.055, 0.675, 0.190)'
          });
        }, 20);
      }, 200);
    }
docs: Transform toolbar back into FAB
  @param  {Object}  object jQuery object