.viewer-element .footer-wrapper,
.viewer-element .header,
.viewer-element .breadcrumb{
  display: none;
}
.viewer-element .page-content-cms {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=AW-728107569"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'AW-728107569');
</script>
<script>
  fbq('trackCustom', 'SolicitudCatalogo');
</script>