Consider the HTML: <ul> <li>Text</li> </ul> and CSS: ul { color: green; padding: 1px !important; } li { padding: 2px; } In this case, for "li" the "padding: 2px" will have a line-through, since Inspector disregards the fact that "padding" is a non-inherited property and considers its occurrence in "ul" taking precedence, since it is !important.
Created attachment 169414 [details] Patch
Committed r131864: <http://trac.webkit.org/changeset/131864>