XML

This text should have the color of the stylesheets name you choose (red, green, blue), and it should be in sans-serif once an alternate style is loaded. The first appearance should be red text in sans-serif, cause red is the preferred stylesheet.

The background should remain grey and the header should remain black, italic and serif, since these elements were defined in the basic.css which has no title attribute and therefore is considered to be persistent.

Note:
The styles are not rendered in Internet Explorer, because the page is served to it as text/html and it therefore ignores the XML Stylesheet Processing Instruction.