.affectedElements{
  display:block;
  zoom:1;
}
// zoom seems to be an old IE 5.5 attribute.

http://stackoverflow.com/questions/1379380/ie7-cause-of-text-empty-text-node

The issue appears in various places, but likely has something to do with "having layout" and is typically seen as extra whitespace between <li> elements.

Fix for IE "Empty Text Node" Whitespace Problem

css, ie, text

CSS