LayoutTests/platform/mac/fast/text/combining-character-sequence-fallback.html

<style>
    div { font-size: 48px; padding: 8px 24px; margin: 8px 0; }
    .reference { border: solid black; }
    .test { border: solid blue; }
</style>
<p>
    Each blue box should match the black box above it.
</p>
<div class="reference" style="font-family: serif;">
    <span style="font-family: 'lucida grande';">1&#x20e3;2&#x20e3;</span> and <span style="font-family: 'lucida grande';">a&#x20e3;</span>
</div>
<div class="test" style="font-family: serif, 'lucida grande';">
    1&#x20e3;2&#x20e3; and a&#x20e3;
</div>

<div class="reference" style="font-family: serif;">
    <span style="font-family: -webkit-pictograph;">1&#x20e3;2&#x20e3;</span> and <span style="font-family: 'lucida grande';">a&#x20e3;</span>
</div>
<div class="test" style="font-family: serif, -webkit-pictograph, 'lucida grande';">
    1&#x20e3;2&#x20e3; and a&#x20e3;
</div>
<p>
    The combining marks should be centered above the letters.
</p>
<div style="font-family: verdana;">
    i&#x0302; and i&#x033f;
</div>
<div style="font-family: verdana; font-variant: small-caps;">
    i&#x0302; and i&#x033f;
</div>