1 files changed, 32 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-position/containing-block-change-scrollframe-ref.html b/testing/web-platform/tests/css/css-position/containing-block-change-scrollframe-ref.html
new file mode 100644
index 0000000000..63cfe1148a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-position/containing-block-change-scrollframe-ref.html
@@ -0,0 +1,32 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test Reference</title>
+<style>
+  #container {
+    width: 400px;
+    height: 400px;
+    margin: 100px;
+    background-color: purple;
+    position: relative;
+  }
+  #spacer {
+    height: 300px;
+  }
+  #bottom {
+    height: 100px;
+    background-color: green;
+  }
+  #abspos {
+    position: absolute;
+    width: 100px;
+    height: 100px;
+    background-color: green;
+    top: 0;
+    left: 0;
+  }
+</style>
+<div id="container">
+  <div id="spacer"></div>
+  <div id="bottom"></div>
+  <div id="abspos"></div>
+</div>