email

1 post tagged email.

Animated newsletter header MP4s (that fall back to a still)
Build an animated newsletter header in HTML, render it to a deterministic MP4, and ship a still PNG as the fallback for clients that strip video.
Marcus Okafor
May 21, 2026
7 min

Newsletter

Join 4,200+ devs reading deterministic video field notes. Once a month. No fluff.

Email address

Join 4,200+ devs reading deterministic video field notes. Once a month. No fluff.

Hhyperframes

The open-source way to render video from HTML — deterministic, framework-agnostic, built for agents.

Topic

1 post tagged email.

Animated newsletter header MP4s (that fall back to a still)
Build an animated newsletter header in HTML, render it to a deterministic MP4, and ship a still PNG as the fallback for clients that strip video.
Marcus Okafor
May 21, 2026
7 min

Newsletter

Join 4,200+ devs reading deterministic video field notes. Once a month. No fluff.

Email address

Join 4,200+ devs reading deterministic video field notes. Once a month. No fluff.

Hhyperframes

The open-source way to render video from HTML — deterministic, framework-agnostic, built for agents.

Animated newsletter header MP4s (that fall back to a still)