Not much to go on. Is the error because of the doc ready function you posted or is it coming from deep inside the script?
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The viewer will learn the basics of jQuery, including how to invoke it on a web page.
Reference your jQuery libraries: (CODE)
Include your new external js/jQuery file: (CODE)
Write your first lines of code to setup your site for jQuery.: (CODE)
Learn how to create flexible layouts using relative units in CSS. New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).