webkitprefixed

WebKitprefixed is a term that refers to CSS properties and JavaScript APIs that were historically implemented by the WebKit rendering engine with a vendor prefix. These prefixes were used by browser vendors to introduce experimental features or to differentiate their implementations from standard specifications. The most common WebKit prefix was "-webkit-".

For example, in CSS, properties like -webkit-transition, -webkit-transform, and -webkit-box-shadow were once widely used to enable advanced visual effects in web pages. These properties allowed developers to apply transitions, transformations, and box shadows before they were standardized and supported by all major browsers without prefixes. Similarly, in JavaScript, developers might encounter WebKit-specific APIs that were later integrated into the broader web standards.

As web standards evolved and gained wider adoption, many of these WebKit-prefixed properties and APIs became obsolete. Browser vendors began to support the unprefixed, standard versions of these features. Consequently, it is generally recommended for web developers to use the standard, unprefixed versions of CSS properties and JavaScript APIs whenever possible. This ensures broader compatibility across different browsers and future-proofing of web projects. While some older websites might still utilize WebKit prefixes for compatibility with older browser versions, modern web development practices favor the use of standard syntax.