2017年4月5日 — Here where comes the magic of prefixes. Mainly, the css properties that should be prefixed are the CSS3 new properties like border-radius, ...
It is used in order to use an arbitrary HTML element as a background image for background and background-image . A particularly useful scenario for using this ...
2013年8月6日 — Typically they're used to implement new, or proprietary CSS features, prior to final clarification/definition by the W3. This allows properties ...