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<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Reference File</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<style>
ruby
{
background-color: lightblue;
font-size: 60px;
}
</style>
<ruby>bas<rt>T</rt>bas<rt>T</rt></ruby>