I am working on my wordpress navigation and things are fine but I am encountering a problem that I don't understand. I am using a li tag to display a pipe character after the nav which is working fine but in the code, it is not proper markup so I thought I would replace the li tag with a span tag instead. The problem is that when I do that, the pip character doesn't display and firebug shows the code is there but it is grayed out like it doesn't exist. Do you know why this is?