DigitalOcean provides cloud products for every stage of your journey. Get started with $200 in free credit! Miriam Suzanne explains in a Mozilla Developer video on the subject. The revert value in CSS “resets” a property back to it’s inherited value, only going as far back as the UA stylesheet. That’s critical, as it won’t reset a <p> to inline, for example, because a <p> is a block-level element