In this video i will talk about CSS Validation


The W3C CSS Validation Service can be used to check the correctness (validity) of W3.CSS.


URL: https://jigsaw.w3.org/css-validator/


The Validation Service was created by the W3C to help Web developers validate CSS.





Validation Warnings

The W3C CSS Validator checks for CSS1, CSS2, CSS3, and CSS4 properties.

Some browsers use vendor extensions to simulate CSS3 and CSS4 properties.

Vendor extensions can create warnings in the W3 CSS validation process.