Website link does not work on tablets etc

[Rannoch]

A friend has a website that was designed by me ex girlfriend way back in 2005 or so, she designed it in Dreamweaver MX, there is a hotspot link, when you highlight the link in a browser on a pc, it drops down with 2 other links, on a smartphone or tablet nothing happens, any ideas or does he need to get a designer to make changes, he has Dreamweaver MX on his pc, and Contribute also.

Thanks

 

[Rannoch]

Hi

highland-holiday-cottages.co.uk/

Under cottages link, drops down fine on PC but not tablet.