Style not getting reflected.

[j2ee Developer]

I am using panelnavigation2. The style frrom my css files are not getting reflected when I include the jsp file using panelnavigation2.
Please note that if I run the included file independently the styles are getting reflected.

also I checked the path to the stylesheet is right as it is getting resolved, its just that the panel

What might I be doing wrong?

Thanks for your help.