diff --git a/index.html b/index.html
index 70794aeb38555fb93aa01a87d786346583e2ca39..31d9cade53fef033fa92e146b226bfcc1bc9341b 100644
--- a/index.html
+++ b/index.html
@@ -72,19 +72,19 @@
         }
 
         25% {
-          transform: rotateY(180deg);
+          transform: rotateY(0.5turn);
         }
 
         50% {
-          transform: rotateY(180deg) rotateX(180deg);
+          transform: rotateY(0.5turn) rotateX(0.5turn);
         }
 
         75% {
-          transform: rotateY(360deg) rotateX(180deg);
+          transform: rotateY(1turn) rotateX(0.5turn);
         }
 
         100% {
-          transform: rotateY(360deg) rotateX(360deg);
+          transform: rotateY(1turn) rotateX(0.5turn);
         }
       }