W3Schools is nothing more than a simple to use (google) and navigate (google) collection of pages with tons of reminders to jog your memory about what exactly i

W3Schools is nothing more than a simple to use (google) and navigate (google) collection of pages with tons of reminders to jog your memory about what exactly it was that a specific css selector or html tag did again. If you use it to learn PHP programming you're doing it wrong. If you use it to learn MySQL, you're doing it wrong. If you use it to learn how browsers work, you're doing it wrong. As a Cliff's notes for HTML and CSS, however, it is more than adequate.