"nav" and "aside" Elements

This section provides an tutorial example of using 'nav' and 'aside' elements in HTML documents to present navigation blocks and sidebars.

"nav" and "aside" elements are added in HTML5 standard to allow us to group paragraphs together to be presented as navigation blocks and sidebar blocks in HTML documents. Here are some general rules about "nav" and "aside" elements:

1. "nav" and "aside" elements are used to present navigation blocks and sidebar blocks.

2. Multiple "nav" and "aside" elements are allowed at the same level.

3. "nav" and "aside" elements are allowed to be directly nested.

Here is a good example of using "header" and "footer" elements in HTML documents:

<!DOCTYPE html>
<!-- HTML5_nav_and_aside_Example.html
 - Copyright (c) 2014 HerongYang.com. All Rights Reserved.
<title>HTML5 nav and aside Example</title>
   <li><a href="/first-post">My first post</a></li>
   <li><a href="/last-post">My last post</a></li>
  <p>Sidebar note - I'm on vacation, writing my blog...

 <p>The aside element represents a section of a page that consists
 of content that is tangentially related to the content around the
 aside element, and which could be considered separate from that
 content. Such sections are often represented as sidebars in printed

Table of Contents

 About This Book

 Introduction of HTML

Introduction of HTML5 Features

 What Is HTML5

 Differences between HTML5 and HTML 4

 HTML5 DOCTYPE Declaration

 Adding Inline SVG Image in HTML5 Documents

 Adding MathML Formula in HTML5 Documents

 "article" and "section" Elements

 "header" and "footer" Elements

"nav" and "aside" Elements

 "details" and "summary" Elements

 "figure" and "figcaption" Elements

 "audio" and "video" Elements

 HTML Document Structure and Content

 HTML Document and Elements Syntax

 Displayed and Printed HTML Documents

 Responsive Design of Web Pages

 MathML Integration in HTML Documents


 Full Version in PDF/EPUB