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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Grid Layout test: align-self property</title>
+<link rel="author" title="Rossana Monteriso" href="mailto:rmonteriso@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-align-self">
+<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/#propdef-direction">
+<meta name="assert" content="This test checks that the align-self property is applied correctly for RL and LR, vertical and horizontal writing modes.">
+<meta name="flags" content="ahem">
+<link rel="stylesheet" href="/css/support/grid.css">
+<link rel="stylesheet" href="/css/support/alignment.css">
+<link rel="stylesheet" href="/css/support/width-keyword-classes.css">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+
+<style>
+
+.grid {
+    grid-template-columns: 100px 100px;
+    grid-template-rows: 200px 200px;
+    margin-bottom: 20px;
+}
+
+.cell {
+    width: 20px;
+    height: 40px;
+}
+
+.item {
+    width: 8px;
+    height: 16px;
+    background: black;
+}
+</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">
+    <div class="grid fit-content" data-expected-width="200" data-expected-height="400">
+        <div class="alignSelfStretch firstRowFirstColumn" data-offset-x="0" data-offset-y="0" data-expected-width="100" data-expected-height="200"></div>
+        <div class="cell alignSelfStart firstRowSecondColumn" data-offset-x="100" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfEnd firstRowSecondColumn" data-offset-x="100" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfCenter secondRowFirstColumn" data-offset-x="0" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content" data-expected-width="200" data-expected-height="400">
+        <div class="cell alignSelfFlexEnd firstRowFirstColumn" data-offset-x="0" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfFlexStart firstRowSecondColumn" data-offset-x="100" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn" data-offset-x="0" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn" data-offset-x="100" data-offset-y="360" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<!-- Default alignment and initial values. -->
+<div style="position: relative">
+    <div class="grid fit-content alignItemsCenter" data-expected-width="200" data-expected-height="400">
+        <div class="cell alignSelfAuto firstRowFirstColumn" data-offset-x="0" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell firstRowSecondColumn" data-offset-x="100" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn" data-offset-x="0" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn" data-offset-x="100" data-offset-y="360" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content" data-expected-width="200" data-expected-height="400">
+        <div class="alignSelfAuto firstRowFirstColumn" data-offset-x="0" data-offset-y="0" data-expected-width="100" data-expected-height="200"></div>
+        <div class="cell firstRowSecondColumn" data-offset-x="100" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfStart secondRowFirstColumn" data-offset-x="0" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfEnd secondRowSecondColumn" data-offset-x="100" data-offset-y="360" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<!-- RTL direction (it should not affect the block-flow direction). -->
+<div style="position: relative">
+     <div class="grid fit-content directionRTL" data-expected-width="200" data-expected-height="400">
+         <div class="alignSelfStretch firstRowFirstColumn" data-offset-x="100" data-offset-y="0" data-expected-width="100" data-expected-height="200"></div>
+         <div class="cell alignSelfStart firstRowSecondColumn" data-offset-x="80" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfEnd firstRowSecondColumn" data-offset-x="80" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfCenter secondRowFirstColumn" data-offset-x="180" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
+     </div>
+</div>
+
+<div style="position: relative">
+     <div class="grid fit-content directionRTL" data-expected-width="200" data-expected-height="400">
+         <div class="cell alignSelfFlexEnd firstRowFirstColumn" data-offset-x="180" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfFlexStart firstRowSecondColumn" data-offset-x="80" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfSelfStart secondRowFirstColumn" data-offset-x="180" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfSelfEnd secondRowSecondColumn" data-offset-x="80" data-offset-y="360" data-expected-width="20" data-expected-height="40"></div>
+     </div>
+</div>
+
+<!-- RTL direction (it should not affect the block-flow) with opposite directions grid container vs grid item. -->
+<div style="position: relative">
+     <div class="grid fit-content" data-expected-width="200" data-expected-height="400">
+         <div class="alignSelfStretch firstRowFirstColumn directionRTL" data-offset-x="0" data-offset-y="0" data-expected-width="100" data-expected-height="200"></div>
+         <div class="cell alignSelfStart firstRowSecondColumn directionRTL" data-offset-x="100" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfEnd firstRowSecondColumn directionRTL" data-offset-x="100" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfCenter secondRowFirstColumn directionRTL" data-offset-x="0" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
+     </div>
+</div>
+
+<div style="position: relative">
+     <div class="grid fit-content" data-expected-width="200" data-expected-height="400">
+         <div class="cell alignSelfFlexEnd firstRowFirstColumn directionRTL" data-offset-x="0" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfFlexStart firstRowSecondColumn directionRTL" data-offset-x="100" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfSelfStart secondRowFirstColumn directionRTL" data-offset-x="0" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
+         <div class="cell alignSelfSelfEnd secondRowSecondColumn directionRTL" data-offset-x="100" data-offset-y="360" data-expected-width="20" data-expected-height="40"></div>
+     </div>
+</div>
+
+<!-- Vertical RL writing mode. -->
+<div style="position: relative">
+    <div class="grid fit-content verticalRL" data-expected-width="400" data-expected-height="200">
+        <div class="alignSelfStretch firstRowFirstColumn" data-offset-x="200" data-offset-y="0" data-expected-width="200" data-expected-height="100"></div>
+        <div class="cell alignSelfStart firstRowSecondColumn" data-offset-x="380" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfEnd firstRowSecondColumn" data-offset-x="200" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfCenter secondRowFirstColumn" data-offset-x="90" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content verticalRL" data-expected-width="400" data-expected-height="200">
+        <div class="cell alignSelfFlexEnd firstRowFirstColumn" data-offset-x="200" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfFlexStart firstRowSecondColumn" data-offset-x="380" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn" data-offset-x="180" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn" data-offset-x="0" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<!-- Vertical LR writing mode. -->
+<div style="position: relative">
+    <div class="grid fit-content verticalLR" data-expected-width="400" data-expected-height="200">
+        <div class="alignSelfStretch firstRowFirstColumn" data-offset-x="0" data-offset-y="0" data-expected-width="200" data-expected-height="100"></div>
+        <div class="cell alignSelfStart firstRowSecondColumn" data-offset-x="0" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfEnd firstRowSecondColumn" data-offset-x="180" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfCenter secondRowFirstColumn" data-offset-x="290" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content verticalLR" data-expected-width="400" data-expected-height="200">
+        <div class="cell alignSelfFlexEnd firstRowFirstColumn" data-offset-x="180" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfFlexStart firstRowSecondColumn" data-offset-x="0" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn" data-offset-x="200" data-offset-y="0" data-expected-width="20" data-expected-height="40"></div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn" data-offset-x="380" data-offset-y="100" data-expected-width="20" data-expected-height="40"></div>
+    </div>
+</div>
+
+<!-- Vertical RL writing mode with opposite block-flow directions grid container vs grid item. -->
+<div style="position: relative">
+    <div class="grid fit-content verticalRL" data-expected-width="400" data-expected-height="200">
+        <div class="alignSelfStretch firstRowFirstColumn verticalLR" data-offset-x="200" data-offset-y="0" data-expected-width="200" data-expected-height="100">
+        </div>
+        <div class="cell alignSelfStart firstRowSecondColumn verticalLR" data-offset-x="380" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfEnd firstRowSecondColumn verticalLR" data-offset-x="200" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfCenter secondRowFirstColumn verticalLR" data-offset-x="90" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content verticalRL" data-expected-width="400" data-expected-height="200">
+        <div class="cell alignSelfFlexEnd firstRowFirstColumn verticalLR" data-offset-x="200" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfFlexStart firstRowSecondColumn verticalLR" data-offset-x="380" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn verticalLR" data-offset-x="0" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn verticalLR" data-offset-x="180" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+    </div>
+</div>
+
+<!-- Vertical LR writing mode with opposite block-flow directions grid container vs grid item. -->
+<div style="position: relative">
+    <div class="grid fit-content verticalLR" data-expected-width="400" data-expected-height="200">
+        <div class="alignSelfStretch firstRowFirstColumn verticalRL" data-offset-x="0" data-offset-y="0" data-expected-width="200" data-expected-height="100">
+        </div>
+        <div class="cell alignSelfStart firstRowSecondColumn verticalRL" data-offset-x="0" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfEnd firstRowSecondColumn verticalRL" data-offset-x="180" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfCenter secondRowFirstColumn verticalRL" data-offset-x="290" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+    </div>
+</div>
+
+<div style="position: relative">
+    <div class="grid fit-content verticalLR" data-expected-width="400" data-expected-height="200">
+        <div class="cell alignSelfFlexEnd firstRowFirstColumn verticalRL" data-offset-x="180" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfFlexStart firstRowSecondColumn verticalRL" data-offset-x="0" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfSelfStart secondRowFirstColumn verticalRL" data-offset-x="380" data-offset-y="0" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+        <div class="cell alignSelfSelfEnd secondRowSecondColumn verticalRL" data-offset-x="200" data-offset-y="100" data-expected-width="20" data-expected-height="40">
+            <div class="item"></div>
+        </div>
+    </div>
+</div>
+
+</body>