Interesting tag in source code

[deenteam]

What does this tag do:
<div id="skipcontent">
<a href="#content" title="Skip to Page Content, AccessKey: z" accesskey="z">Skip to Page Content</a>

And does it have any effect on SEO?

[encyclo]

It's not anything to do with SEO - it's simply an accessibility aid.

The site would have been designed using CSS, and the link offers a "jump" to the beginning of the content for users of screenreaders, rather than forcing them to scroll through the menu first. Often, such a link is hidden from users with a CSS-enabled browser. The

accesskey

attribute allows the user to press "z" to place the cursor directly at the beginning of the content too.