diff --git a/css/css-multicol/fixed-size-child-with-overflow.html b/css/css-multicol/fixed-size-child-with-overflow.html
new file mode 100644
index 00000000000000..60300c3cd65ba4
--- /dev/null
+++ b/css/css-multicol/fixed-size-child-with-overflow.html
@@ -0,0 +1,10 @@
+
+
+
+
+Test passes if there is a filled green square and no red.
+
diff --git a/css/css-multicol/nested-with-too-tall-line-ref.html b/css/css-multicol/nested-with-too-tall-line-ref.html
new file mode 100644
index 00000000000000..16be12ca9187db
--- /dev/null
+++ b/css/css-multicol/nested-with-too-tall-line-ref.html
@@ -0,0 +1,6 @@
+
+
+The word "PASS" should be seen below, and there should be no red.
+
+ PASS
+
diff --git a/css/css-multicol/nested-with-too-tall-line.html b/css/css-multicol/nested-with-too-tall-line.html
new file mode 100644
index 00000000000000..67a289ca558af4
--- /dev/null
+++ b/css/css-multicol/nested-with-too-tall-line.html
@@ -0,0 +1,14 @@
+
+
+
+
+
+
+The word "PASS" should be seen below, and there should be no red.
+