I can not post the code now, so I'll be as clear as I can.
I'm making a website on that single page pattern, where each session of the site has the exact size of the screen. This is done via Jquery (that basic screen-grabbing script).
The site is not designed to support mobile phones, but the customer has asked for only a screen size adjustment when the site is accessed via mobile (portrait format). Since I can not explain further, I will go straight to the question
How to make a JQuery script that runs only on mobile phones? Or how to change what already exists so that it does not support mobile (in that case I would correct the Css with media query).