How do I fix a background video that is not playing automatically on mobile devices?

Background videos freeze on mobile viewports due to strict browser energy-saving and autoplay restrictions. To bypass this, the raw video source tag must explicitly feature the muted, autoplay, and playsinline markup parameters.

“This is a quick fix, mobile browsers require the muted, autoplay, and playsinline attributes explicitly set on the video tag. I’ll add them and have it autoplaying within 24 hours for $99.”
— Jeff Bollettino, Managing Director, Ignite Conversions