404 from https://www.w3.org/WAI/WCAG21/Understanding/non-text-contrast.html#active-user-interface-component-examples
All aboard the (Super) HTML 5 bus!
Certificate on w3c.org
Configuring EPUB Validator to work on my computer.
demande d'informations... html security.
Form validation preventing valid e-mail addresses in site registration.
I found vulnerabilities!
Incorrect Bounding Box Result
Last message date: Friday, 28 September 2018 03:37:24 UTC