W3Schools - The Largest Web Developer Site on the Internetat August 27, 2017
The site derives its name from the World Wide Web (W3), but is not affiliated with the W3C.
W3Schools was originally created in 1998 by Refsnes Data, a Norwegian software development and consulting company.
W3Schools has focus on simplicity.
W3Schools practice easy and straight-forward learning.
W3Schools uses simple code explanations with simple illustrations of how to use it.
W3Schools' tutorials start from basic level and move all the way up to professional references.
Read more https://www.w3schools.com/