Changed the jQuery hidden/visible selectors to be a little more precise.

Author: jeresig

src/selector.js

@@ -937,11 +937,11 @@ jQuery.expr = Sizzle.selectors;
 jQuery.expr[":"] = jQuery.expr.filters;
 
 Sizzle.selectors.filters.hidden = function(elem){
-	return elem.offsetWidth === 0;
+	return elem.offsetWidth === 0 || elem.offsetHeight === 0;
 };
 
 Sizzle.selectors.filters.visible = function(elem){
-	return elem.offsetWidth > 0;
+	return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 };
 
 Sizzle.selectors.filters.animated = function(elem){