wpt / css / css-text-decor / text-decoration-subelements-002.html

Status: FAIL | Duration: 16ms | Subtests: 0/1 | Open test on wpt.live | Open ref on wpt.live | wpt.fyi

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/css/css-text-decor/text-decoration-subelements-002.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Test case for text-decoration with subelements</title>
    <meta name="assert" content="for underlines and overlines the UA must use a single thickness and position on each line for the decorations deriving from a single decorating box">
    <link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
    <link rel="author" title="Mozilla" href="https://www.mozilla.org">
    <link rel="help" href="https://drafts.csswg.org/css-text-decor-3/#text-underline-position-property">
    <link rel="match" href="reference/text-decoration-subelements-002-ref.html">
    <meta name="fuzzy" content="maxDifference=0-80;totalPixels=0-42">
    <style>
      div.wrapper {
        font-size: 2em;
        position: relative;
      }
      div.test {
        text-decoration: underline;
        position: absolute;
        white-space: nowrap;
      }
    </style>
  </head>
  <body>
    <p>Test passes if there is a single uniform underline for all the text in each line,
      <i>not</i> a separate underline for the superscripts:
    </p>
    <div class=wrapper>
      <div style="position: absolute; top: 1em;">
        <div class=test>Einstein said that <i>e = mc<sup>2</sup></i>.</div>
      </div>
      <div style="position: absolute; top: 3em;">
        <div class=test>Is <i>a<sup>n</sup> + b<sup>n</sup> = c<sup>n</sup></i> ever true for <i>n</i> &gt; 2.</div>
      </div>
    </div>
  </body>
</html>

/css/css-text-decor/reference/text-decoration-subelements-002-ref.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Reference case for text-decoration with subelements</title>
    <style>
      div.wrapper {
        font-size: 2em;
        position: relative;
      }
      sup.baseline {
        vertical-align: baseline;
      }
      .hide {
        color: transparent;
      }
      div {
        white-space: nowrap;
      }
    </style>
  </head>
  <body>
    <p>Test passes if there is a single uniform underline for all the text in each line,
      <i>not</i> a separate underline for the superscripts:
    </p>
    <div class=wrapper>
      <div style="position: absolute; top: 1em;">
        <!-- We use position:absolute and overflow:hidden so that this element will be
             shrink-wrapped to fit the width of its content, and clip the underline of
             the descendant span to the width of this text. -->
        <div style="position: absolute; overflow: hidden;">Einstein said that <i>e = mc<sup>2</sup></i>.
          <div style="position: absolute; top: 0;">
            <!-- Generate a single continuous underline with the appropriate style
                 by underlining a span of transparent text; it will be too wide for the
                 actual test text, as we're not matching its mixture of font styles,
                 but then will be clipped to the shrink-wrap width of the abs-pos
                 containing block. -->
            <span style="text-decoration: underline;">
              <span class=hide>Einstein said that e = mc2......</span></span>
            <span class=hide><sup>2</sup></span><!-- to ensure baseline is consistent with testcase -->
          </div>
        </div>
      </div>
      <div style="position: absolute; top: 3em;">
        <div style="position: absolute; overflow: hidden;">Is <i>a<sup>n</sup> + b<sup>n</sup> = c<sup>n</sup></i> ever true for <i>n</i> &gt; 2.
          <div style="position: absolute; top: 0;">
            <span style="text-decoration: underline;">
              <span class=hide>Is an + bn = cn ever true for n &gt; 2......</span></span>
            <span class=hide><sup>n</sup></span><!-- to ensure baseline is consistent with testcase -->
          </div>
        </div>
      </div>
    </div>
  </body>
</html>