I\'m trying to grab an arbitrary element using a CSS selector (eg. \"#someId .className a\") in GWT.
I\'m building a JS widget that can live on a 3rd party website a
You could use querySelector() and querySelectorAll(), available for newer browsers...
http://www.javascriptkit.com/dhtmltutors/css_selectors_api.shtml
...in terms of browser support, querySelector() and querySelectorAll() is supported in Firefox 3.1+, IE8+ (only in IE8 standards mode), and Safari 3.1+