I am not sure why the Google Map on this page http://devhost.in/ftmap/ft.html does not show up in portrait view on iPhone (iOS 7). It shows in iOS 6 and other mobile devices.
I have checked the media queries and everything seems fine and the fact that it works on all other devices.
Check line 8624 of all.css, that one is doing the harm:
.visual{display:none!important;}