use jquery mobile only for certain devices/resolutions

use jquery mobile only for certain devices/resolutions

I am working on developing our company website.  I have it looking good on a desktop all the way down to an ipad mini resolution(~768px).  But now I want to get the site looking good on smaller tablets and cell phones.  I want to use jQuery Mobile for this.  But I don't want jQuery Mobile to change the look of my site above ~768px.  Is this possible?  Am I thinking about this all wrong?
Thanks
Mike