What Are CSS Vendor Prefixes and How Do They Ensure Cross-Browser Compatibility?

Understanding CSS Vendor Prefixes: Definitions and Beyond

CSS vendor prefixes are essential for cross-browser compatibility in web development. While you mentioned the common ones such as -khtml-, -moz-, -o-, -ms-, and -webkit-, it's important to note that there are other vendor prefixes in use.

Additional CSS Vendor Prefixes:

• -ms-: Microsoft Edge and Internet Explorer
• -mso-: Microsoft Office
• -moz-: Mozilla Foundation (Firefox and other Gecko-based browsers)
• -o-, -xv-: Opera Software

Accuracy of Definitions:

Your definitions are generally correct, but it's worth expanding on the specifics:

• -khtml-: This prefix was originally used by the Konqueror browser. It is now considered obsolete, as Safari (which was based on KHTML) no longer supports it.

Mobile Browsers:

Webkit-based mobile browsers (e.g., Mobile Safari) typically support the same -webkit- prefixes as their desktop counterparts. However, some mobile browsers may have additional vendor prefixes specific to their platform.

Additional Considerations:

• Webkit supports properties using the -apple- prefix as well.

• Other niche vendor prefixes include:

  • -atsc-: Advanced Television Standards Committee
  • -wap-: The WAP Forum
  • -prince-: YesLogic
  • -ah-: Antenna House
  • -tc-: Tall Components

These prefixes are officially listed in the CSS 2.1 Specification (section 4.1.2.2). By understanding and using vendor prefixes appropriately, developers can ensure their CSS styles are compatible across multiple browsers and devices.

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