w3school Offline and Online

Learn how to create a website on your own computer
Learn the basics of web building in less than a day
Learn how to add a database to your website..
Important Topics...
HTML/CSS
Learn HTML
Learn HTML5
Learn CSS
Learn CSS3
JavaScript
Learn JavaScript
Learn jQuery
Learn jQueryMobile
Learn AngularJS
Learn AJAX
Learn JSON
Learn Google Maps
Server Side
Learn SQL
Learn PHP
Learn ASP
Learn ASP.NET
Learn VBScript
Learn AppML
XML Tutorials
Learn XML
Learn DTD
Learn Schema
Learn XML DOM
Learn XPath
Learn XSLT
Learn XQuery
Learn XSL-FO
Learn SVG
Learn RSS
Learn WSDL
WEB Building
Web Primer
Web Building
Web Statistics
Web Validation
Web Certificates