<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>text-underline-offset test case</title>
    <meta name="assert" content="zero-position for text-underline-offset is at the alphabetic baseline">
    <link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
    <link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#line-offset-zero">
    <link rel="match" href="reference/text-underline-offset-zero-position-ref.html">
    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
    <style>
        .green {
            color: green;
        }
        .red {
            color: red;
        }
        #test {
            font: 100px Ahem;
            color: green;
            -webkit-text-decoration-skip: none;
            text-decoration-skip-ink: none;
        }
        u {
            text-decoration: underline;
            text-decoration-color: red;
            text-decoration-thickness: 20px;
            text-underline-position: auto;
            text-underline-offset: 0px;  /* at the alphabetic baseline, per spec */
        }
    </style>
</head>
<body>
    <p class="instructions">Test passes if there is a <span class=green>green</span> line and <span class=red>no red</span>.</p>
    <div id="test">
        <!-- At 100px, the "p" in Ahem will be a box with its top at the baseline,
             and its bottom 20px (0.2em) below the baseline. -->
        <u>ppp</u>
    </div>
</body>
</html>
