This is the element that corresponds to item 1. It should not be visible, unless you followed a link that explicitly targeted "#item1".
If you jumped to item 2, then this element should be visible.
This element is visible if you clicked on the third menu item. The element has a URL, that you can use elsewhere as well. You can put it in some other Web page and jump directly to this item.
This page is based on an original idea by Daniel Glazman. See the explanation in his "blog" of Jan 9, 2003 and his demo of Jan 13.