1 files changed, 46 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-break/flexbox/multi-line-column-flex-fragmentation-037.html b/testing/web-platform/tests/css/css-break/flexbox/multi-line-column-flex-fragmentation-037.html
new file mode 100644
index 0000000000..5fd1fa283b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-break/flexbox/multi-line-column-flex-fragmentation-037.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<title>
+  Tests that flex-items get pushed down due to a previous flex row expanding as
+  a result of fragmentation with margin-top.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<style>
+  #flex {
+    display: flex;
+    flex-direction: column;
+    flex-wrap: wrap;
+    height: 500px;
+  }
+  #flex > div {
+    background: green;
+    width: 10px;
+  }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="width: 100px; height: 100px; columns: 5; column-gap: 0; column-fill: auto; background: red;">
+  <div id="flex">
+    <div>
+      <div style="contain: size; width: 10px; height: 70px;"></div>
+      <div style="contain: size; width: 10px; height: 40px;"></div>
+    </div>
+    <div style="margin-top: 10px; position: relative;">
+      <div style="contain: size; width: 10px; height: 80px;"></div>
+      <div style="contain: size; width: 10px; height: 40px;"></div>
+      <div style="position: absolute; top: -60px; width: 10px; height: 60px; background: green;"></div>
+    </div>
+    <div style="height: 100px;"></div>
+    <div style="height: 60px;"></div>
+    <div>
+      <div style="contain: size; width: 10px; height: 70px;"></div>
+      <div style="contain: size; width: 10px; height: 40px;"></div>
+    </div>
+    <div style="margin-top: 60px; position: relative;">
+      <div style="contain: size; width: 10px; height: 80px;"></div>
+      <div style="contain: size; width: 10px; height: 40px;"></div>
+      <div style="position: absolute; top: -60px; width: 10px; height: 60px; background: green;"></div>
+    </div>
+    <div style="height: 100px;"></div>
+    <div style="height: 60px;"></div>
+  </div>
+</div>