Hello there!
I can start working right now. It shouldn't take me more than a couple hours.
I'm working as a Front Web Developer at Hubspot, but I want to try out Freelancer. I really need some rating, so if you pick me now, I'll deliver your project asap.
Btw, I will use Media Query for the mobile optimization, so there's no need to identify device type. It will be basically the same website, only it will adapt for any screen size instantly.