What online testing can a layout designer pass and get a certificate?

Question

IT education

It is important that the certificate has some weight and is issued by a company like the W3C, and not just a test result from some left site with html lessons.

Answer 1

https://htmlacademy.ru
after a monthly intensive, a certificate is given and, completed during the training, the layouts go to the portfolio

Answer 2

there are tests on the odesk freelance exchange, but there css questions are just poison)

Answer 3

No certificates have any weight. No one looks at them when applying for a job. They look at work, experience, they can give a test task, but no one cares about certificates.