Classroom Resources

1. Code.org Web Development
2. Khan Academy on HTML, CSS and More

Tutorials for HTML, CSS, JavaScript, jQuery, PHP, SQL

1. W3Schools
2. Code Academy

Validators

1. HTML5
   • http://validator.w3.org/
   • http://html5.validator.nu
2. CSS3
   • http://jigsaw.w3.org/css-validator

PHP Code Checker

1. http://phpcodechecker.com/