Site won't behave on iPhone

[Perkin5]

I am developing a wedding website at the following url:
http://www.olivierandnatalia.com/site/home
using Codeigniter although I don’t think that is relevant to this issue.
It is basically a one page site and smooth scrolling is achieved using a script called ‘singlePageNav.js’.
The site seems to work pretty well in firefox/Chrome etc and also on iPad but the home page does not display properly on iPhone 6 landscape. I’ve been playing with this for a week now and got nowhere. I am using the standard iPhone media query as recommended by CSS-tricks. Can anyone suggest what is wrong?

[Perkin5]

Resolved my own question by using an alternative stylesheet and completely recoding the CSS for the iPhone – which worked – and what I should have done from the start although a lot more work. The automatic downscaling by iOS of a larger site to fit on the iPhone screen is obviously not a perfect process.

[Author]

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