diff --git a/css/libs/animate.css b/css/libs/animate.css
index 60f0c96..699808d 100644
--- a/css/libs/animate.css
+++ b/css/libs/animate.css
@@ -15,12 +15,15 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 */
 
 .animated {
-  -webkit-animation-duration: 1s;
-  animation-duration: 1s;
   -webkit-animation-fill-mode: both;
   animation-fill-mode: both;
 }
 
+.animated:not([data-wow-duration]) {
+  -webkit-animation-duration: 1s;
+  animation-duration: 1s;
+}
+
 .animated.hinge {
   -webkit-animation-duration: 2s;
   animation-duration: 2s;