Applications based on WebKit or Blink, such as Safari and Chrome, support a number of special WebKit extensions to CSS. These extensions are generally prefixed with -webkit-. Most -webkit- prefixed properties also work with an -apple- prefix. A few are prefixed with -epub-.

WebKit-only properties (avoid using on websites)

Note: These properties will only work in WebKit applications, and are not on a standards track.

A

B

C – G

H – I

L

M

N – O

P

R – S

T

WebKit-prefixed properties on the standards track

Formerly proprietary properties that are now standard

Note: To maximize the compatibility of your CSS, you should use the unprefixed standard properties instead of the prefixed ones listed below.

Pseudo-classes

Note: If there is an invalid pseudo-class within in a chain or group of selectors, the whole selector list is invalid.

Pseudo-elements

For web-compatibility reasons, Blink, WebKit, and Gecko browsers treat all pseudo-elements starting with ::-webkit- as valid.

Note: Generally, if there is an invalid pseudo-element or pseudo-class within in a chain or group of selectors, the whole selector list is invalid. If a pseudo-element (but not pseudo-class) has a -webkit- prefix, As of Firefox 63, Blink, WebKit and Gecko browsers assume it is valid, not invalidating the selector list.

Media features

See also

Document Tags and Contributors

Last updated by: ExE-Boss,