What should I learn next? After HTML and CSS [closed]

What should I learn next? After HTML and CSS [closed]

References

Reference NO 1

http://stackoverflow.com/questions/15191775/what-should-i-learn-next-after-html-and-css

Reference NO 2

http://www.html.net/forums/viewtopic.php?f=8&t=49

Reference NO 3

http://blog.lynda.com/2012/05/12/why-you-should-learn-php-after-html-css-and-javascript/

Reference NO 4

http://www.quora.com/After-HTML-and-CSS-what-languages-should-a-hobbyist-learn-for-web-development

Reference NO 5

http://www.thesitewizard.com/html-tutorial/what-is-html.shtml

Reference NO 6

http://www.barelyfitz.com/screencast/html-training/css/positioning/

Reference NO 7

http://www.w3schools.com/html/html_elements.asp

Reference NO 8

http://learn.shayhowe.com/html-css/ordered-unordered-definition-lists