Module9: Making HTML Files Accessible
Estimated Time to Complete: 3 hours
Module 9 contains eleven topics and four labs. All topics are
not required to be completed; you may start and stop at any point.
Upon completion of Module 9, you will be able to:
- Describe the accessibility issues related to common HTML elements.
- Create an accessible version of an HTML document.
- Identify the accessibility issues related to plug-ins.
- Discuss how to make image maps more accessible.
- State the cost estimates involved in making an HTML document accessible.
HTML stands for Hypertext Markup Language. Most webpages are
generally written in HTML, as recognized by the .htm or .html extension code
that follows the filename. Module 9 covers how to make the most common elements
in HTML documents accessible for individuals with disabilities. Specifically
this module will discuss:
- Images with the need to provide alternative text ("alt") and long
description ("longdesc") ; this additional information supports
all users - not just those with disabilities.
- Using cascading style sheets (CSS) and the proper mark-up (coding) of textual
elements; this results in documents being easier to read and navigate. It
also will allow for customized styles by your users.
- Making forms accessible by logically grouping and associating elements
as well as providing accesskeys and a tab index.
- Making tables accessible through header and footer information, logically
grouping columns, and using the summary and caption information.
- Accessibility issues when working with plug-ins.
- How to create accessible image maps.
As you progress through this module, be aware that many of
the techniques used to make HTML documents accessible are structural and do
not affect the appearance of the page. More importantly, most of these techniques
have a profound impact on the navigability and readability of webpages to the
benefit of all users.
To gain the most from Module 9, you should have familiarity with:
- Basic accessibility terminology
- Using a text editor such as Notepad or a web authoring tool such as Dreamweaver.
The next page presents version information for software and the various files that are used in Module 9.