chromium/third_party/blink/web_tests/external/wpt/css/css-grid/reference/grid-percentage-gap-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout Reference: percentage grid gaps</title>
<link rel="author" title="Rachel Andrew" href="mailto:[email protected]" />
<style>
    .grid {
        width:200px;
        height: 180px;
        background-color: green;
        position: relative;
        margin-bottom: 30px;
    }

    .grid > div {
        background-color: silver;
        width: 90px;
        height: 90px;
        position: absolute;
    }
</style>

<p>The test passes if it has the same visual effect as reference. Column gap should be percentage of width. Row gap should be percentage of height.</p>
<div class="grid">
    <div style="top:0;     left:0"></div>
    <div style="top:0;     left:110px"></div>
    <div style="top:108px; left:0"></div>
    <div style="top:108px; left:110px"></div>
</div>
<div class="grid" style="height:200px">
    <div style="top:0;     left:0"></div>
    <div style="top:0;     left:120px"></div>
    <div style="top:120px; left:0"></div>
    <div style="top:120px; left:120px"></div>
</div>