1 files changed, 13 insertions, 0 deletions
diff --git a/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html b/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html
new file mode 100644
index 000000000..6203e2662
--- /dev/null
+++ b/layout/reftests/css-valuesandunits/unit-rem-div-width-outer.html
@@ -0,0 +1,13 @@
+<style>
+:root { font-size: 20px }
+body { font-size: 25px }
+div {
+  font-size: 30px;
+  width: 15rem;
+}
+#a {
+  border-bottom: 1px solid #f00;
+}
+</style>
+
+<body>Level 1<div id=a>Level 2<div id=b>Level 3</div></div></body>