Fragment;
    slideProto.previousFragment  = previousFragment;

    function slideProtoCreatedCallback(){  
      var templateContent = document.importNode(template.content, true);
      this.createShadowRoot().appendChild(templateContent);
      
      initFragments.call(this);
     
      this.parentNode.registerSlide(this);
    }

    function slideProtoAttachedCallback() {
      window.addEventListener("resize", resize.bind(this), false);
      setTimeout(resize.bind(this), 0);
    }

    function showS