Positioned with the help of CSS, it’s a CTA that remains fixed in a layout when rendered in an email client and does not move irrespective of the scroll while the other content can scroll up or down seamlessly. This ensures the subscriber does not overlook the CTA.
This feature is only for Android mobile devices. While it is supported in Android Native and Boxer App, it is not currently supported in Android Gmail, Yahoo, Outlook App (they do provide fallback). Moreover, all iPhone devices will render a fallback only.
We shall get back to you within a few hours.