Css3 image gallery forward and back buttons are not displayed in IE9

Q: I am trying out visual lightbox but have come across one problem. In
Google Chrome the forward and back buttons display.

However in Internet Explorer Nine they don't?
Is this a bug or just the way the program operates.

A: This problem can appear in IE browser if the DOCTYPE you use on the page is incorrect
or there is no DOCTYPE on the page.

You should set the following DOCTYPE for the page with videogallery:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">