Disable autocomplete via CSS

As it stands, there is no 'autocomplete off' attribute in CSS. However, html has an easy code for this:

<input type="text" id="foo" value="bar" autocomplete="off" />

If you're looking for a site-wide effector, an easy one would be to simply have a js function to run through all 'input' s and add this tag, or look for the corresponding css class / id.

The autocomplete attribute works fine in Chrome and Firefox (!), but see also Is there a W3C valid way to disable autocomplete in a HTML form?

you can easily implement by jQuery

$('input').attr('autocomplete','off');

You can use a generated id and name everytime, which is different, so the browser cannot remember this text-field and will fail to suggest some values.

This is at least the cross browser safe alternative, but I would recommend to go with the answer from RobertsonM (autocomplete="off").