Drop down not working on the iPhone

Some time ago I built a site for a rugby club, it has a drop down menu system which works on all browsers but for some reason doesn’t work on the iPhone or iPad. I vaguely remember adding some jQuery in to the wordpress menu setup to prevent the main menu tabs from going to any pages, there by they just act as a call to action for the drop down items… website in question https://www.stewmelrugby.com Obviously I’d like the sites menu to work on the iPhone/iPad but I don’t want the lead menu tabs to go anywhere is there another way round this?

Thanks