tramway-landing/app/views/layouts/tramway/landing/tools/_google_tag_manager_body.html.haml
/ Google Tag Manager (noscript)
%noscript
%iframe{height: "0", src: "https://www.googletagmanager.com/ns.html?id=#{account_id}", style: "display:none;visibility:hidden", width: "0"}
/ End Google Tag Manager (noscript)