HTML and CSS Reference
UP TO THIS point in the book, you focused on how to create web pages using HTML. In the remaining chapters,
learn about the key concepts of programming. In the following chapters, you'll return to the Joe's Pizza Co. website
and put your new knowledge to use.
programs are constructed, and the various tools available to you as a developer. These include control and loop struc-
tures as well as how to select and manipulate elements within your pages.
You'll also look at the Document Object Model (DOM), what it is, how it is created, and why it is important. You will
also learn about DOM nodes and the relationships between them.
Brendan Eich originally designed the language while working on the Netscape browser in 1995; he's now the Chief
Technology Officer at Mozilla (the non-profit organization that develops, among other things, the Firefox web
and behaves once it has loaded into the user's browser. This means that you could update some of the content in the
page without having to reload the page. You can even request new content from a web server and display it on the
web applications such as Gmail and Facebook make heavy use of AJAX to create fast interfaces.