The Countdown timer block generates an animated GIF that lasts 60 seconds, which is supported by most inboxes. If it is not supported in an inbox, only the first image of the GIF is displayed. When the email is reopened, the timer is updated with the remaining time.
To provide a quick download and minimize its weight (KB), the Countdown timer content block generates an animated GIF file that lasts 60 seconds, which gives the visitor enough time to see it in the email or landing page. The timer stops after 60 seconds. When the email is reopened or the landing page revisited, the timer resets to start for another 60 seconds, with the remaining time left.