January 16, 2006
Liz published this at 6:56 am
Cas read my article on how to code hyperlinks and in the comments shared some discussion about the importance of accessible links–a topic which had come up earlier in Successful-Blog conversations. In my usual fashion I invited Cas to write on the subject and she took up the challenge. Her response was to do a series of articles on accessible hyperlinks. I, for one, am so glad she did. She really does know so much more about such things than I do. In fact, she knows so much more that I asked her to start by just clarifying for me what is it that makes an Accessible link. –ME “Liz” Strauss
How to Code Accessible Links–Part One: The Basics
by Cas of Brightmeadow
Liz has already written a great article on how to code hyperlinks. I’d like to take this one further and show you how to code accessible hyperlinks. If you are happy with how to manually code hyperlinks, then we can continue. If you aren’t, or feel like you need a bit of a refresher, I do recommend you read the article. We’ll wait.
What is an accessible link?
Web accessibility is about making your website accessible to all Internet users (both disabled and non-disabled), regardless of what browsing technology they’re using. An “accessible link” therefore, is simply a link that imparts as much information to as many users as possible. It enables the reader to preview the link, making an informed decision about whether to follow it or not, and helps to differentiate between links that may share link text but refer to different targets
So why should I worry about accessibility?
Not everyone views the Web in the same way that you do – accessibility is not just for disabled users. It is for the many potential readers who might be browsing your site on a dial-up connection, using a screen-reader, using a mobile device with a small screen, or using a text-only browser such as Lynx. By making your website accessible you are opening it up to a much wider potential audience. Making something accessible for humans also has the side effect of making it more accessible for search engines. If you make a living through your site, happy readers, and happy search engines just make good sense.
Not convinced that this is necessary? Turn off the images in your browser, and then the stylesheet, and see if you can still successfully navigate your website and get meaning from your content. What you see now is roughly how someone with visual impairment, or a text-only browser, views your website.
- Internet Explorer: Tools > Internet Options > Advanced > Multimedia > Show pictures (uncheck)
- Firefox: Tools > Options > Web features > Load images (uncheck)
- Opera: Tools > Preferences > Multimedia > Show no images
- Stylesheets: View > Page Styles > No style
So how do I go about making my links accessible?
It really isn’t that hard. If you’re already manually coding your links, making them accessible is just a case of putting in a few extra bits of text.
This how-to is in three parts, and will walk you through what you need to know:
- How to code an accessible hyperlink
- How to code an accessible image
- How to code an accessible embedded hyperlink
Throughout this article I will be using http://www.foo.com as an demonstration. Simply replace this, and any other exemplar text with the particulars for what you are doing.
How to code an accessible text hyperlink
Just to remind you what the basic hyperlink code looks like:
<a href=”http://www.foo.com”>Descriptive Link Anchor Text </a>
The TITLE description – how it works
It is the TITLE attribute that makes a link accessible. It is inserted after the URL but before the first closing angled bracket and contains descriptive text, enabling the reader to ‘preview’ the link. This in turn allows users to more accurately guess where the link will take them, and make a more informed decision about whether or not they should follow it. Roll your mouse over this example link and you will see what I mean. The text that appears by your mouse cursor is the preview.
<a href=”http://www.foo.com” title=”Descriptive text” >
Link anchor text will render like this: Link anchor text
When to use
Every hyperlink should have a TITLE attribute.
A few notes
The descriptive title can be any text you want, though to make it as accessible as possible, follow these simple rules:
- It should say something about the destination of the link.
- It needs to be between 3 and 80 characters long. A single sentence is normally sufficient.
–Cas and Liz