Html5

By Robin Nixon

If you are at all familiar with HTML, chances are you want to know more about the cutting-edge digital development toolbox, HTML5. Whether you are building your knowledge base from scratch or you are a seasoned user of HTML, this guide will be an excellent reference source to learn more about the changes and additions to HTML that will be affecting a browser near you!

• Language: English
• Publisher: BarCharts, Inc.
• Release date: Nov 30, 2009
• ISBN: 9781423237167

Robin Nixon

Robin Nixon has been a software developer and author since the 1980s and has written over 30 books on the subject. His book Learning PHP, MySQL & JavaScript was first published in 2009 and since then its various editions have remained some of the top-selling books on web development worldwide, and are used as course material for numerous courses in colleges and universities. Robin’s books have been translated into many different languages and he has also produced a range of video tutorials.

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Getting Started What Is HTML5?

Rather than being simply an extension of the HTML4 markup language, HTML5 is a collection of technologies that have been brought under a single umbrella name. There are many new HTML tags (and many tags have also been removed), but at the same time, two new markup languages have been added to HTML: Math Markup Language and Scalable Vector Graphics; in addition, JavaScript has been extended with a raft of new functions and attributes, and there are powerful new audio, video, and graphical features.

NOTE: This guide assumes that you have a general understanding of how web servers and browsers work, are already familiar with and comfortable using HTML4, and are able to program using basic JavaScript. This guide uses single quotes for attribute values; double quotes are used for strings, such as questions and commands.

The Major Web Browsers

HTML5 is new and is being implemented a part at a time by the different browser manufacturers. In this guide, the major browsers are listed alongside every feature according to the following key. If a particular browser supports a feature, its key letter will be shown in underlined boldface, but if it doesn’t support that feature, its corresponding key letter will be neither boldface nor underlined. If a browser key letter is simply underlined, then a feature is partially supported by that browser. In all cases, it is assumed that you have the latest version of a browser, but remember that all HTML5 features should eventually reach full implementation across all major browsers, so it is recommended that you test any features you plan on using on the latest versions of all browsers you are targeting. In February 2013, Opera announced it will use the same WebKit engine as Safari and Chrome; therefore, its browser will become closely compatible with them both.

Creating an HTML5 Document Declaring the Document Type

HTML5 uses this simple document type tag, which replaces all the varieties of previous HTML4 versions: . Many of the examples in this guide assume that this tag has been included at the start of the