1 files changed, 15 insertions, 0 deletions
diff --git a/src/css/hiddenVisibleSelectors.js b/src/css/hiddenVisibleSelectors.js
new file mode 100644
index 000000000..c7f1c7ee7
--- /dev/null
+++ b/src/css/hiddenVisibleSelectors.js
@@ -0,0 +1,15 @@
+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 );
+};
+
+});