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Test Info:

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Text level 3 Test: zwj and text-shaping, cross font, fallback</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="match" href="reference/shaping-join-001-ref.html">
<meta name="assert" content="Arabic characters next to a ZERO WIDTH JOINER character must take their correct positional form, even if the ZWJ comes from a differnt font due to font fallback.">
<style>
table {
font-size: 3em;
border-spacing: 0 3px;
}
td {
padding: 0 0.5ch;
line-height: 1;
border: 1px solid;
}
@font-face {
font-family: 'primary';
src: url('/fonts/noto/NotoNaskhArabic-regular.woff2') format('woff2');
unicode-range: U+20;
}
@font-face {
font-family: 'joiners';
src: url('/fonts/noto/noto-sans-v8-latin-regular.woff') format('woff');
unicode-range: U+200C-200D;
}
@font-face {
font-family: 'csstest_noto';
src: url('/fonts/noto/NotoNaskhArabic-regular.woff2') format('woff2');
}
table {
/*using a primary font with just U+20 (space) to get the baseline right*/
font-family: 'primary', 'joiners', 'csstest_noto';
}
</style>
<p>Test passes if both halves of each of the pairs below are identical:
<table dir=rtl>
<tr><!-- alef, final form as it doesn't have a medial form -->
<td>&zwj;&#x0627;&zwj;
<td>&#xFE8E;
<tr><!-- alef, final form -->
<td>&zwj;&#x0627;
<td>&#xFE8E;
<tr><!-- beh, initial form -->
<td>&#x0628;&zwj;
<td>&#xFE91;
<tr><!-- beh, medial form -->
<td>&zwj;&#x0628;&zwj;
<td>&#xFE92;
<tr><!-- beh, final form -->
<td>&zwj;&#x0628;
<td>&#xFE90;
</table>