In Appendix F, we demonstrated how images can be used as hyperlinks to link to other resources on the Internet. In this section, we introduce another technique for image linking called image maps, which designates certain areas of an image (called hotspots) as links. Figure G.7 introduces image maps and hotspots.
 Some Web browsers do not support XHTML 1.1 image maps. For this reason we use XHTML 1.0 Transitional, an earlier W3C version of XHTML. In order to validate the code in Figure G.7 as XHTML 1.1, remove the # from the usemap attribute of the img tag (line 53).
1 <?xml version = "1.0" ?> 2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ...