ipython/ipython — pull request #6185 by jasongrout (2014-07-22 19:31:19+00:00)
Title: Css selectors

Make the CSS selector syntax more powerful for DOMWidgets with two changes:

* Make the selector also act on the top-level widget, not just descendants of the top-level widget
* Introduce a `:top` selector that selects the top-level container (the `this.$el` of the view)