> This is not true. What about color contrast? What about alt text for images? These problems (and many others) can occur in plain html pages. Another example:

> This is not true. What about color contrast? What about alt text for images? These problems (and many others) can occur in plain html pages. Another example: one must use <span lang="XX"> tags on foreign words and phrases sprinkled in a text, otherwise screenreaders can choke on them.