diff --git a/source/rollIn.css b/source/rollIn.css
index 07aacb9..edefbee 100644
--- a/source/rollIn.css
+++ b/source/rollIn.css
@@ -15,6 +15,11 @@
 	100% { opacity: 1; -ms-transform: translateX(0px) rotate(0deg); }
 }
 
+@-o-keyframes rollIn {
+	0% { opacity: 0; -o-transform: translateX(-100%) rotate(-120deg); }
+	100% { opacity: 1; -o-transform: translateX(0px) rotate(0deg); }
+}
+
 @keyframes rollIn {
 	0% { opacity: 0; transform: translateX(-100%) rotate(-120deg); }
 	100% { opacity: 1; transform: translateX(0px) rotate(0deg); }