Combo filter down arrow

Everything is working fine with dhtmlxGrid with the exception of the combo filter entries. The down arrows are half visible and I’m not quite sure as to why. Image attached. Any suggestions? Thanks.

Most probably it is the result of some kind of css conflict. ( global css class for div tag, which forces custom line-height for all divs on the page, for example )

Can you provide any kind of sample or demo link where it can be checked ?

link to test site: (now the down arrows do not show at all)
http://sacs.ncat.edu/dg/api.html

Thanks for your help

Solved. It was a css conflict in the body of the page. Thanks.