Animated Outlook HTML Signature

I need a polished, editable HTML email signature that works flawlessly in Microsoft Outlook. The key feature is a simple, elegant animation: both truck and forklift images should slide in—think of a clean, professional movement that draws the eye without feeling gimmicky. If you have a subtler technique that still communicates motion and keeps the signature lightweight, I’m open to it, but the sliding effect is my starting point.

Essential requirements
• Pure HTML/CSS (no external scripts) so I can tweak names, titles, and contact details myself later.
• Tested in current Outlook desktop and web versions with fall-backs for dark mode.
• Optimised asset sizes to keep the email lean and avoid spam filters.
• Final hand-off: one commented HTML file plus the image assets or a single lightweight animated GIF/SVG, delivered ASAP.
Placeholder for sender information so signatures can be controlled

Let me know your approach and any past examples of animated signatures you’ve built; I’m ready to move quickly.