how does java script work hand in hand with html and css?

Answer 1

You are able to create really cool interactive webpages by adding JavasScript mainly for the functional side, and CSS for the looks/design of your webpages.

Check this out this tutorial by the main international standards organization for the World Wide Web:

http://www.w3schools.com/html/html5_intro.asp

Answer 2

@rubalu, note w3schools has *absolutely nothing* to do with the w3, or standards, or anything connected at all to international WWW standards, it's just a tutorial site called w3schools. It's deceptively named.