chromium/third_party/blink/web_tests/fast/css-grid-layout/grid-item-positioning-with-orthogonal-flows.html

<!DOCTYPE html>
<link href="resources/grid.css" rel="stylesheet">
<link href="resources/grid-alignment.css" rel="stylesheet">
<style>
body {
    margin: 0;
}

.container {
    position: relative;
}

.grid {
    font: 10px/1 Ahem;
    width: 300px;
    height: 160px;
}
</style>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../../resources/check-layout-th.js"></script>
<body onload="checkLayout('.grid')">
<div id="log"></div>
<p>This test checks that grid items positioning works as expected with orthogonal flows.</p>

<p>HORIZONTAL-TB container with VERTICAL-LR items.</p>
<div class="container">
    <div class="grid itemsStart contentStart fixedWidth" data-expected-width="300" data-expected-height="160">
        <div class="firstRowFirstColumn   verticalLR" data-offset-x="0"  data-offset-y="0"  data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="firstRowSecondColumn  verticalLR" data-offset-x="20" data-offset-y="0"  data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="secondRowFirstColumn  verticalLR" data-offset-x="0"  data-offset-y="80" data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="secondRowSecondColumn verticalLR" data-offset-x="20" data-offset-y="80" data-expected-width="20" data-expected-height="80">X X X X X X</div>
    </div>
</div>

<p>HORIZONTAL-TB container with VERTICAL-RL items.</p>
<div class="container">
    <div class="grid itemsStart contentStart" data-expected-width="300" data-expected-height="160">
        <div class="firstRowFirstColumn   verticalRL" data-offset-x="0"  data-offset-y="0"  data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="firstRowSecondColumn  verticalRL" data-offset-x="20" data-offset-y="0"  data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="secondRowFirstColumn  verticalRL" data-offset-x="0"  data-offset-y="80" data-expected-width="20" data-expected-height="80">X X X X X X</div>
        <div class="secondRowSecondColumn verticalRL" data-offset-x="20" data-offset-y="80" data-expected-width="20" data-expected-height="80">X X X X X X</div>
    </div>
</div>

<p>VERTICAL-LR container with HORIZONTAL-TB items.</p>
<div class="container">
    <div class="grid itemsStart contentStart fixedHeight verticalLR" data-expected-width="300" data-expected-height="160">
        <div class="firstRowFirstColumn   horizontalTB" data-offset-x="0"   data-offset-y="0"  data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="firstRowSecondColumn  horizontalTB" data-offset-x="0" data-offset-y="10" data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="secondRowFirstColumn  horizontalTB" data-offset-x="110"   data-offset-y="0"  data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="secondRowSecondColumn horizontalTB" data-offset-x="110" data-offset-y="10" data-expected-width="110" data-expected-height="10">X X X X X X</div>
    </div>
</div>

<p>VERTICAL-RL container with HORIZONTAL-TB items.</p>
<div class="container">
    <div class="grid itemsStart contentStart fixedHeight verticalRL" data-expected-width="300" data-expected-height="160">
        <div class="firstRowFirstColumn   horizontalTB" data-offset-x="190" data-offset-y="0"  data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="firstRowSecondColumn  horizontalTB" data-offset-x="190"   data-offset-y="10" data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="secondRowFirstColumn  horizontalTB" data-offset-x="80" data-offset-y="0"  data-expected-width="110" data-expected-height="10">X X X X X X</div>
        <div class="secondRowSecondColumn horizontalTB" data-offset-x="80"   data-offset-y="10" data-expected-width="110" data-expected-height="10">X X X X X X</div>
    </div>
</div>
</body>