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  <title>CSS-contain test: size containment on ruby-text-container</title>
  <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
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  <meta name=assert content="size containment does not to apply ruby-text-container, which is an internal ruby element">
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  <link rel=help href="https://drafts.csswg.org/css-contain-1/#containment-size">
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