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+++ b/testing/web-platform/tests/css/css-flexbox/columns-height-set-via-top-bottom.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html>
+<title>Proper size of flex item in a column flexbox with height set via top/bottom.</title>
+<link href="support/flexbox.css" rel="stylesheet">
+<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#flex-direction-property">
+<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#propdef-flex-flow">
+<meta name="assert" content="This test ensures that when a 'display: flex' element with 'flex-flow: column' is itself sized by fitting to another container via setting position absolute + top, bottom, right, left all to 0, its flex items do not have natural size."/>
+<style>
+.container {
+    position: relative;
+    height: 100px;
+    width: 100px;
+    border: 2px solid orange;
+}
+.flexbox {
+    flex-direction: column;
+    position: absolute;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    padding: 10px;
+}
+.flexbox > :nth-child(1) {
+    background-color: lightblue;
+}
+.flexbox > :nth-child(2) {
+    background-color: lightgreen;
+}
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<body onload="checkLayout('.flexbox')">
+<div id=log></div>
+
+<div class="container">
+    <div data-expected-height=100 class="flexbox column">
+        <div data-expected-height=30 data-expected-width=80 style="height: 30px"></div>
+        <div data-expected-height=50 data-expected-width=80 style="flex: 1;"></div>
+    </div>
+</div>
+
+<div class="container">
+    <div class="flexbox column wrap">
+        <div data-expected-height=50 data-expected-width=40 style="height: 50px"></div>
+        <div data-expected-height=80 data-expected-width=40 style="flex: 1 50px;"></div>
+    </div>
+</div>
+</body>
+</html>