Animated Scuba Diver Signature

I’m refreshing my email signature and want a small black-and-white scuba diver who automatically swims from left to right whenever the message is opened. The motion should loop smoothly without requiring a click or hover, and it must stay subtle enough not to distract from the rest of the signature content.

Please build the animation (GIF, SVG/CSS, or another lightweight method you recommend) and supply it inside a ready-to-paste HTML signature block. I’ll drop in my existing text and logo myself, so keep the code clean and clearly commented.

Compatibility with the usual suspects—Outlook, Gmail, Apple Mail and mobile clients—is critical; graceful fallback for clients that block animations is appreciated.

Deliverables
• Final animation file
• Complete HTML snippet with embedded or linked asset
• Brief instructions on how to swap in my own contact details and logo

I’m happy to answer any rendering or branding questions along the way.