lockfixed is a jQuery plugin which allows for DOM elements to be positioned anywhere on the page, and lock within the user's viewport when scrolling. Common use case is a menu under a header, which on scrolling stays within the viewport and doesn't overflow the footer.
Degrades nicely on mobile and tablet browsers and doesn't have any CSS prerequisites.
$.lockfixed(".menu");
or
$.lockfixed(".menu",{offset: {top: 10, bottom: 100}});
See demo.
Find the documentation.
Just send either one of us a message on Twitter: @yvoschaap.
lockfixed is released under the MIT license. See the license for details.
lockfixed, sticky, scroll, set, element