Provide alternative content for images
Provide alternative content in case active features are inaccessible or unsupported. Use Alt Text for images and animations. This way, if images don’t load, the user will still see some messaging. Make flash content available in another format. Not all visitors have flash downloaded to their computer. These guidelines (Web Design Guidelines)can help you provide a streamlined experience for the customers that come to your web site. And that, in turn, can lead to sales and repeat customers.