PC Magazine

W3C MarkUp Validation Service

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 ...
GitHub

Fails validation in "W3C CSS Validator"

Latest release 2.0.6 [1] fails CSS validation [2]. Both pico.css and pico.min.css show error in W3C CSS Validator. The error lines are long. pico.min.css: 4.The error ...
PC Magazine

W3C MarkUp Validation Service

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 ...
GitHub

validator.html.pt-BR

<p><strong>Nota</strong>: Para validar uma folha de estilo CSS incorporada a um documento (X)HTML você deverá, primeiramente, <a href="http://validator.w3.org ...