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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Grid Layout test: align-content in vertical-rl</title>
+<link rel="author" title="Rossana Monteriso" href="mailto:rmonteriso@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-writing-modes-4/#propdef-direction">
+<link rel="help" href="https://drafts.csswg.org/css-grid-1/#grid-align">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#alignment-values">
+<link rel="help" href="https://drafts.csswg.org/css-writing-modes-4/#direction">
+<meta name="assert" content="This test checks that the align-content property is applied correctly in vertical-rl grids, for both LTR and RTL directions.">
+<meta name="flags" content="ahem">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<link rel="stylesheet" href="/css/support/grid.css">
+<link rel="stylesheet" href="/css/support/alignment.css">
+
+<style>
+
+.grid {
+    grid: 100px 100px / 50px 50px;
+    position: relative;
+    width: 300px;
+    height: 200px;
+}
+
+.cell {
+    width: 20px;
+    height: 40px;
+}
+
+</style>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<script type="text/javascript">
+  setup({ explicit_done: true });
+</script>
+
+<body onload="document.fonts.ready.then(() => { checkLayout('.grid'); })">
+
+<div style="position: relative">
+    <p>direction: LTR | align-content: 'center'</p>
+    <div class="grid verticalRL alignContentCenter" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="230" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="150" data-offset-y="50" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="50" data-offset-y="0" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="130" data-offset-y="50" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <p>direction: LTR | align-content: 'start'</p>
+    <div class="grid verticalRL alignContentStart" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="280" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="200" data-offset-y="50" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="100" data-offset-y="0" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="180" data-offset-y="50" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <p>direction: LTR | align-content: 'end'</p>
+    <div class="grid verticalRL alignContentEnd" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="180" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="100" data-offset-y="50" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="00" data-offset-y="0" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="80" data-offset-y="50" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<!-- RTL direction. -->
+<div style="position: relative">
+    <p>direction: RTL | align-content: 'center'</p>
+    <div class="grid directionRTL verticalRL alignContentCenter" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="230" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="150" data-offset-y="100" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="50" data-offset-y="150" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="130" data-offset-y="110" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <p>direction: RTL | align-content: 'start'</p>
+    <div class="grid directionRTL verticalRL alignContentStart" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="280" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="200" data-offset-y="100" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="100" data-offset-y="150" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="180" data-offset-y="110" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <p>direction: RTL | align-content: 'end'</p>
+    <div class="grid directionRTL verticalRL alignContentEnd" data-expected-width="300" data-expected-height="200">
+        <div class="cell firstRowFirstColumn" data-offset-x="180" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+        <div class="firstRowSecondColumn" data-offset-x="100" data-offset-y="100" data-expected-width="100" data-expected-height="50"></div>
+        <div class="secondRowFirstColumn" data-offset-x="00" data-offset-y="150" data-expected-width="100" data-expected-height="50"></div>
+        <div class="cell secondRowSecondColumn" data-offset-x="80" data-offset-y="110" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+</body>