Before CSS, images were always put into Web pages with image tags. We gave them alternate alt text so they still made sense when images were turned off – it was the only way. Today, we have Cascading Style Sheets. Using CSS to add images to Web pages has been called a "vital cornerstone of all future Web design". It gives us new power to control the presentation not just of basic styles like borders, but all the images across a whole site. Fahrner Image Replacement FIR was the first widespread method of doing this, and remains the most well known. But it isn't perfect. Today I'll show you two methods that overcome its problems.
Direct link: Accessible Header Images With CSS And XHTML