Show URL or name of the style sheet when hovering over an HTML element

When using the elements feature of Weinre, I would like to be able to see the URL or name of the style sheet the HTML element is using when I hover over it. For more details and screenshots, see the "Using Elements in Weinre Doesn't Display Stylesheets" post in the Weinre Google Group at https://groups.google.com/forum/?fromgroups#!forum/weinre.