URL: https://html.spec.whatwg.org/multipage/ [ISO_9241-391] Ergonomics of human-system interaction—Part 391: Requirements, analysis and compliance test methods for the reduction of photosensitive seizures . International Standards Organization. URL: https://www.iso.org/standard/56350.html [pointerevents] Pointer Events . Jacob Rossi; Matt Brubeck. W3C.