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<title>Test for dynamic removal of ruby frames</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org">
<link rel="author" title="Mozilla" href="https://www.mozilla.org">
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<p>One space should exist between 'a' and 'b':</p>

<p>a <rt></rt>b</p>
<p>a<rb></rb> b</p>
<p>a<rb></rb> <rb></rb>b</p>
<p>a<rbc></rbc> <rbc></rbc>b</p>
<p><rb>a</rb> <rb>b</rb><rt>x</rt> <rt>y</rt></p>