jquery/jquery-ui — pull request #840 by tjvantoll (2012-11-24 21:27:33+00:00)
Title: Resizable: Modified the default z-index value of resizable handles.  Fix...

...ed #7960 - Dialog: Modal dialogs do not disable resizables on the page.

See http://bugs.jqueryui.com/ticket/7960.

I was a little torn about adding the inline comment. `90` is kind of a random number so I thought having a reference might help.