With Dreamweaver, you can check your mark-up using the built-in validator, or you can use the validators on the W3C site, because markup and CSS is either right, or it isn't. A web site can be technically accessible (that is, all the alt text is there etc) but still very difficult to use, so you need to test it. In this tutorial, Rachel looks at testing your sites with the free Lynx text-only browser, or a trial edition of a screen-reader and what to look for.

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