diff --git a/tests/ref/basic.list b/tests/ref/basic.list
index 3e8abb9e30f..5c271708a02 100644
--- a/tests/ref/basic.list
+++ b/tests/ref/basic.list
@@ -219,3 +219,5 @@ fragment=top != ../html/acid2.html acid2_ref.html
 == table_caption_top_a.html table_caption_top_ref.html
 == table_caption_bottom_a.html table_caption_bottom_ref.html
 == clip_a.html clip_ref.html
+!= inset_blackborder.html blackborder_ref.html
+
diff --git a/tests/ref/blackborder_ref.html b/tests/ref/blackborder_ref.html
new file mode 100644
index 00000000000..266c7f058c5
--- /dev/null
+++ b/tests/ref/blackborder_ref.html
@@ -0,0 +1,20 @@
+<html>
+<style>
+body {
+    margin: 0px;
+}
+
+.box {
+    width: 100px;
+    height: 100px;
+    margin: 0px;
+    border-width: 10px;
+    border-style: solid;
+}
+
+</style>
+
+<body>
+<div class="box"></div>
+</body>
+</html>
diff --git a/tests/ref/inset_blackborder.html b/tests/ref/inset_blackborder.html
new file mode 100644
index 00000000000..ffacd8a7855
--- /dev/null
+++ b/tests/ref/inset_blackborder.html
@@ -0,0 +1,20 @@
+<html>
+<style>
+body {
+    margin: 0px;
+}
+
+.box {
+    width: 100px;
+    height: 100px;
+    margin: 0px;
+    border-width: 10px;
+}
+
+.inset { border-style: inset; }
+</style>
+
+<body>
+<div class="box inset"></div>
+</body>
+</html>
