Re: How to create responsive design only for mobile devices not for Tablet/tabs like iPad etc??

[Senff]

I would argue that iPad falls in the “mobile” category as well.

A site can not behave differently based on the criterium “mobile” or “tablet”, since those are subjective terms.
A site CAN behave differently based on objective terms, such as screen width, device width, browser type/version, OS, etc.

It all starts with the question what defines mobile for you, and based on that you’ll have to create your rules that result in showing a mobile site, or “regular” site.