Bootstrap not working in IOS

I am using this startbootstrap templates that have the layout etc and includes all the necessary library. ‘Everything’ seems to work but the dropdown menu doesn’t work in my ios phone(7).

After googling in stackoverflow, I change the meta line to:


meta name=“viewport” content=“width=device-width, initial-scale=1.0”


(note: above < and > is left out cos it doesn’t get displayed)
I am not sure what I have missed out. Hope someone can advise me. Thanks.