<style>a:hover{text-shadow:4px 5px 0px rgba(0,0,0,0.1),
4px -6px 0px rgba(0,0,0,0.2),
6px 12px 0px rgba(0,0,0,0.1),
-8px 5px 0px rgba(0,0,0,0.2),
-3px -8px 0px rgba(0,0,0,0.1);}</style>
To add this only as a link header effect, add this to #nav2 a:hover{ or your header link hover div:

text-shadow:4px 5px 0px rgba(0,0,0,0.1),
4px -6px 0px rgba(0,0,0,0.2),
6px 12px 0px rgba(0,0,0,0.1),-8px 5px 0px rgba(0,0,0,0.2),
-3px -8px 0px rgba(0,0,0,0.1);