link not working on iphone

My website https://lamdep4u.net is created from wordpress source. On PC my site display well but when i use iphone i can’t click any link menu as well as category sitebar. I also use wp touch plugin for mobile edition but link menu and category is not working, i don’t know why, please help me resolve it
Here is css file:

[Excessive CSS moderated. if necessary, please use a pastebin]