1 files changed, 69 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-grid/alignment/grid-align-baseline-001.html b/testing/web-platform/tests/css/css-grid/alignment/grid-align-baseline-001.html
new file mode 100644
index 0000000000..a03ce153b3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-grid/alignment/grid-align-baseline-001.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#baseline-rules">
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#column-align">
+<style>
+#target {
+  display: grid;
+  grid-auto-flow: column;
+  align-items: last baseline;
+  width: 200px;
+  border: solid 3px;
+  position: relative;
+  writing-mode: vertical-lr;
+}
+#target > :nth-child(1) {
+  background: lime;
+  margin-right: 20px;
+  padding-right: 20px;
+  font-size: 20px;
+  line-height: 20px;
+  align-self: first baseline;
+  writing-mode: vertical-rl;
+}
+#target > :nth-child(2) {
+  background: hotpink;
+  font-size: 30px;
+  line-height: 30px;
+  writing-mode: vertical-lr;
+}
+#target > :nth-child(3) {
+  background: papayawhip;
+  font-size: 16px;
+  line-height: 16px;
+  writing-mode: vertical-lr;
+}
+#target > :nth-child(4) {
+  background: orange;
+  margin-left: 20px;
+  padding-left: 20px;
+  font-size: 20px;
+  line-height: 20px;
+  align-self: first baseline;
+  writing-mode: vertical-lr;
+}
+#target > :nth-child(5) {
+  background: cyan;
+  font-size: 30px;
+  line-height: 30px;
+  writing-mode: vertical-rl;
+}
+#target > :nth-child(6) {
+  background: papayawhip;
+  font-size: 16px;
+  line-height: 16px;
+  writing-mode: vertical-rl;
+}
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<body onload="checkLayout('#target > div')">
+
+<div id="target">
+  <div data-offset-x="120">line1<br>line2</div>
+  <div data-offset-x="105">line1<br>line2</div>
+  <div data-offset-x="126">line1<br>line2</div>
+  <div data-offset-x="20">line1<br>line2</div>
+  <div data-offset-x="35">line1<br>line2</div>
+  <div data-offset-x="42">line1<br>line2</div>
+</div>