--- /dev/null
+define([
+ "../core",
+ "../selector"
+], function( jQuery ) {
+
+jQuery.expr.filters.hidden = function( elem ) {
+ // Support: Opera <= 12.12
+ // Opera reports offsetWidths and offsetHeights less than zero on some elements
+ return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
+};
+jQuery.expr.filters.visible = function( elem ) {
+ return !jQuery.expr.filters.hidden( elem );
+};
+
+});