yes that what i said retina is important for mobile size we set adjustement to 100% in retina version anyway in the futur if u wanna to change some style go to OldCar options > Custom codes > Custom CSS and write the css you want there. Good luck
Hi sara to set a logo for mobile size go to OLDCAR_options and set a Mobile LOGO you can also set a retina mobile logo is the double size of the mobile logo good luck.