Figure 17-8 ordering content order:
For search engines/screen readers put most important information is first
item 1 summary
Item 2 main content
Item 3 sidebar1
Item 4 sidebar2
for Web surfers use property order:item#; to put navigation/advertizement sidebars on top.
item 1 summary order:4
Item 2 main content order:3
Item 3 sidebar 1order:1
Item 4 sidebar2 order:2
for Web surfers use property order:item#; to put navigation/advertizement sidebars on top; order:-1 moves the items leftmost.
item 1 summary order:3
Item 2 main content order:2
Item 3 sidebar 1 order:-1
Item 4 sidebar2 order:1