diff --git a/modules/ext.RevisionSlider.lazy.less b/modules/ext.RevisionSlider.lazy.less
index 2bde7d2d..6e348c15 100644
--- a/modules/ext.RevisionSlider.lazy.less
+++ b/modules/ext.RevisionSlider.lazy.less
@@ -58,50 +58,30 @@ https://codepen.io/Volker_E/pen/yqNXMe */
 		width: 16px;
 		height: 16px;
 		border-radius: 100%;
-		-webkit-animation: bouncedelay 1600ms infinite ease-in-out both;
 		animation: bouncedelay 1600ms infinite ease-in-out both;
-		-webkit-animation-delay: -160ms;
 		animation-delay: -160ms;
 	}
 
 	&:before {
 		margin-right: 4px;
-		-webkit-animation-delay: -330ms;
 		animation-delay: -330ms;
 	}
 
 	&:after {
 		margin-left: 4px;
-		-webkit-animation-delay: 0s;
 		animation-delay: 0s;
 	}
 }
 
-/* Loading spinner animations */
-@-webkit-keyframes bouncedelay {
-	0%,
-	50%, /* equals 800ms */
-	100% {
-		-webkit-transform: scale( 0.625 );
-	}
-
-	20% { /* equals 320ms */
-		opacity: 0.87;
-		-webkit-transform: scale( 1 );
-	}
-}
-
 @keyframes bouncedelay {
 	0%,
 	50%, /* equals 800ms */
 	100% {
-		-ms-transform: scale( 0.625 );
 		transform: scale( 0.625 );
 	}
 
 	20% { /* equals 320ms */
 		opacity: 0.87;
-		-ms-transform: scale( 1 );
 		transform: scale( 1 );
 	}
 }