diff --git a/src/_Utility.sass b/src/_Utility.sass
index 19d5202..6c17611 100644
--- a/src/_Utility.sass
+++ b/src/_Utility.sass
@@ -11,7 +11,7 @@
 
 	&:after,
 	&:before
-		content: ''
+		content: ' ' // The space content is one way to avoid an Opera bug.
 		display: table
 
 // Float either direction