How to enable iOS 5 Safari Reader on my website?

Question

How does the Reader function of Mobile Safari in iOS 5 work? How do I enable it on my site. How do I tell it what content on my page is an article to trigger this function?<

Answer 1

Surprising though it may be, it indeed does not pay any attention to the HTML5 article tag, particularly disappointing given that Safari 5 has complete support for article, section, nav, etc in CSS--they can be styled just like a div now, and behave the same as any block level element.

I had specifically set up a site with an article tag and several inner section tags, in prep for semantic HTML5 labeling for exactly such a purpose, so I was really hoping that Safari 5 would use that for Reader. No such luck--probably should file a bug on this, as it would make a great deal of sense. It in fact completely ignores most of the h2 level subheads on the page, each marked as a section, only displaying the single div that adheres to the criteria mentioned previously.

Ironically, the old version of the same site, which has neither article, section, nor separating div tags, recognizes the whole body for display in Reader.