• A self-contained page with the divider between two text sections, in your colors and words
• Six seamless loops (moth, orb, lotus, branch, jelly, prism) and a poster for each
• A reduced-motion still and a fallback when autoplay is blocked, so the band is never empty
• A checker that measures the black edges and the loop seam, and a page check for the video attributes and text alternative
• A script that turns your own object-on-black clip into a seamless, size-limited loop
• Open-source licenses for every part it builds on

A band between two sections of a dark page with one lit object floating in it: a glass moth opening its wings, a liquid-chrome orb with a turning ring of light, a folded-paper lotus, a moss branch, a neon jellyfish, a prism shard. Each is a short 1080p loop on pure black, laid on the page with mix-blend-mode screen so the video's black becomes the page's black and only the light stays: no box, no frame. Six original loops ship in the package, about half a megabyte each. Your agent writes one divider.json with your page colors and words, builds the page, and checks that the edges are black and the loop does not jump. A still poster shows for reduced motion and when autoplay is blocked. A script turns your own clip of an object on black into a seamless loop.

Example request

Put a Black Plate divider between the hero and the pricing section of our dark landing page, using the glass moth loop, with our background color and a short line above and below.