css/css-grid/grid-definition/grid-auto-repeat-positioned-container-001.html

<!DOCTYPE html>
<title>CSS Grid: auto-repeat tracks on a positioned grid container.</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com"/>
<link rel="issue" href="https://crbug.com/624301"/>
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#repeat-notation"/>
<link rel="match" href="grid-auto-repeat-positioned-container-001-ref.html"/>
<meta name="assert" content="Checks that auto repeat tracks are properly computed for a positioned grid container with a definite width and height."/>
<link href="/css/support/grid.css" rel="stylesheet"/>
<style>
.wrapper {
    position: relative;
    width: 100px;
    height: 100px;
}

.grid {
    position: absolute;
    left: 0; right: 0; top: 0; bottom: 0;
    grid: repeat(auto-fill, 20px) / repeat(auto-fill, 25px);
    justify-content: start;
    align-content: start;
}

.item {
    background: green;
}
</style>

<p>Test passes if you get a grid with 5 rows of 20px and 4 columns of 25px.</p>

<pre id="log"></pre>

<div class="wrapper">
    <div id="grid" class="grid">
        <div class="item" style="grid-area: 1 / 1;"></div>
        <div class="item" style="grid-area: 2 / 2;"></div>
        <div class="item" style="grid-area: 3 / 3;"></div>
        <div class="item" style="grid-area: 4 / 4;"></div>
        <div class="item" style="grid-row: 5; grid-column: 1 / -1;"></div>
    </div>
</div>

<script>
    var log = document.getElementById("log");

    var grid = document.getElementById("grid");
    var computedStyle = getComputedStyle(grid);

    log.innerHTML = "grid: " + computedStyle.getPropertyValue("grid-template-rows") + " / " + computedStyle.getPropertyValue("grid-template-columns") + ";";
</script>