1 files changed, 36 insertions, 0 deletions
diff --git a/layout/reftests/async-scrolling/group-opacity-surface-size-1-ref.html b/layout/reftests/async-scrolling/group-opacity-surface-size-1-ref.html
new file mode 100644
index 0000000000..12b6ee367a
--- /dev/null
+++ b/layout/reftests/async-scrolling/group-opacity-surface-size-1-ref.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<style>
+
+body {
+  margin: 0;
+  overflow: hidden;
+}
+
+.opacity {
+  opacity: 0.8;
+}
+
+.box {
+  left: 0;
+  top: 200px;
+  width: 200px;
+  height: 200px;
+}
+
+.absolute {
+  position: absolute;
+  background: green;
+  top: 100px;
+}
+
+.fixed {
+  position: absolute;
+  background: blue;
+}
+
+</style>
+
+<div class="opacity">
+  <div class="box absolute"></div>
+  <div class="box fixed"></div>
+</div>