1 files changed, 38 insertions, 0 deletions
diff --git a/layout/reftests/css-animations/animate-preserves3d.html b/layout/reftests/css-animations/animate-preserves3d.html
new file mode 100644
index 0000000000..cf390513b7
--- /dev/null
+++ b/layout/reftests/css-animations/animate-preserves3d.html
@@ -0,0 +1,38 @@
+<html>
+  <head>
+    <style type="text/css">
+      .pad {
+        display: block;
+        height: 20px;
+      }
+      .out {
+        display: block;
+        position: absolute;
+        transform-origin: 0 0;
+        width: 100px;
+        height: 50px;
+        overflow: hidden;
+      }
+      .rect {
+        width: 100px;
+        height: 50px;
+        background-color: grey;
+      }
+      
+      .ani {
+        animation: rot 200s linear infinite;
+        animation-timing-function: steps(2, start);
+        transform-origin: 50px 50px;
+      }
+      @keyframes rot {
+        to { transform: translate(200px, 0px); }
+      }
+    </style>
+  </head>
+  <body>
+    <div class="pad"></div>
+    <div class="out ani">
+      <div class="rect"></div>
+    </div>
+  </body>
+</html>