Fix Firefox flip bug (animate-css#805)

Author: gianjohansen

animate.css

@@ -1875,73 +1875,89 @@
 
 @-webkit-keyframes flip {
   from {
-    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -360deg);
-    transform: perspective(400px) rotate3d(0, 1, 0, -360deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, -360deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0) rotate3d(0, 1, 0, -360deg);
     -webkit-animation-timing-function: ease-out;
     animation-timing-function: ease-out;
   }
 
   40% {
-    -webkit-transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -190deg);
-    transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -190deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -190deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -190deg);
     -webkit-animation-timing-function: ease-out;
     animation-timing-function: ease-out;
   }
 
   50% {
-    -webkit-transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -170deg);
-    transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -170deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -170deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -170deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }
 
   80% {
-    -webkit-transform: perspective(400px) scale3d(0.95, 0.95, 0.95);
-    transform: perspective(400px) scale3d(0.95, 0.95, 0.95);
+    -webkit-transform: perspective(400px) scale3d(0.95, 0.95, 0.95) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
+    transform: perspective(400px) scale3d(0.95, 0.95, 0.95) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }
 
   to {
-    -webkit-transform: perspective(400px);
-    transform: perspective(400px);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0) rotate3d(0, 1, 0, 0deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }
 }
 
 @keyframes flip {
   from {
-    -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -360deg);
-    transform: perspective(400px) rotate3d(0, 1, 0, -360deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, -360deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0) rotate3d(0, 1, 0, -360deg);
     -webkit-animation-timing-function: ease-out;
     animation-timing-function: ease-out;
   }
 
   40% {
-    -webkit-transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -190deg);
-    transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -190deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -190deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -190deg);
     -webkit-animation-timing-function: ease-out;
     animation-timing-function: ease-out;
   }
 
   50% {
-    -webkit-transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -170deg);
-    transform: perspective(400px) translate3d(0, 0, 150px) rotate3d(0, 1, 0, -170deg);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -170deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 150px)
+      rotate3d(0, 1, 0, -170deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }
 
   80% {
-    -webkit-transform: perspective(400px) scale3d(0.95, 0.95, 0.95);
-    transform: perspective(400px) scale3d(0.95, 0.95, 0.95);
+    -webkit-transform: perspective(400px) scale3d(0.95, 0.95, 0.95) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
+    transform: perspective(400px) scale3d(0.95, 0.95, 0.95) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }
 
   to {
-    -webkit-transform: perspective(400px);
-    transform: perspective(400px);
+    -webkit-transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0)
+      rotate3d(0, 1, 0, 0deg);
+    transform: perspective(400px) scale3d(1, 1, 1) translate3d(0, 0, 0) rotate3d(0, 1, 0, 0deg);
     -webkit-animation-timing-function: ease-in;
     animation-timing-function: ease-in;
   }