Blitz - WPT: hanging-whitespace-001.tentative.html

wpt / css / css-text / white-space / hanging-whitespace-001.tentative.html

/css/css-text/white-space/hanging-whitespace-001.tentative.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text Level 3: glyphs can only hang at the edge of a line</title>
<link rel="author" title="Andreu Botella" href="mailto:abotella@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#hanging">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<meta name="assert" content="Glyphs can't hang at the end of the line if there are non-hanging glyphs after them in the line">

<style>
  div {
    font: 25px/1 Ahem;
    width: 5ch;
    height: 4ch;
    margin-left: -1ch;
    background:
      linear-gradient(red, red) 1ch 0 / 4ch 1ch no-repeat,
      linear-gradient(green, green) 1ch 0 / 4ch 4ch no-repeat;

    text-align: right;
    white-space: normal;
  }
  span {
    color: transparent;
    background: green;
  }
  .break-spaces {
    white-space: break-spaces;
  }
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

<div><span>X&#x3000;&#x3000;</span><span class="break-spaces"> </span></div>

<!--
  With white-space: normal, ideographic spaces (U+3000) are preserved but do
  hang. But here they are followed by spaces with white-space: break-spaces,
  which are preserved and never hang. Since only glyphs at the edge of a line
  can hang, this prevents the ideographic spaces from hanging.
-->

/css/reference/ref-filled-green-100px-square.xht

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>CSS Reftest Reference</title>
  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
  <style type="text/css"><![CDATA[
  div
  {
  background-color: green;
  height: 100px;
  width: 100px;
  }
  ]]></style>
 </head>
 <body>
  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
  <div></div>
 </body>
</html>