The free 3 W3C MarkUp Validation Service and 4 W3C CSS Validation Service ensure that your pages meet the exact specifications established by the W3C. The MarkUp Validation Service checks for ...

The free 3 W3C MarkUp Validation Service and 4 W3C CSS Validation Service ensure that your pages meet the exact specifications established by the W3C. The MarkUp Validation Service checks for ...

This project is a beginner-friendly introduction to HTML, focusing on the fundamentals of building and structuring web pages using only HTML, CSS, and JavaScript (no external libraries or frameworks).

When running css-validator from the command line without any argument, or with -h nothing happens. The output is confusing. It works with --help, but actually that's by accident because this argument ...