Modern mobile-friendly video controller: Shadow DOM + adoptedStyleSheets, Popover API menus, CSS Anchor Positioning, event-driven (no heavy DOM observers/polling).
A powerful, mobile-friendly userscript that adds a persistent "Card" UI to web videos, providing advanced playback controls and optimizations.
IntersectionObserver and ResizeObserver to minimize CPU usage and only active when videos are in view.main.js and create a new script in your manager, or use the GreasyFork install link.This script is a fork of the original work by Nasimul Hasan Maruf.
Special thanks to the original author for the foundation of this controller.
This project is open-source. Please refer to the original author's terms if applicable.