css/css-text/text-autospace/text-autospace-first-line-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#text-autospace-property">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<link rel="match" href="text-autospace-first-line-001-ref.html">
<style>
.test {
  font-family: Ahem;
  font-size: 40px;
  text-autospace: normal;
}
.first-line::first-line {
  font-size: 200%;
}
</style>
<div id="container">
  <div id="test1" class="test first-line">国国XX国<br>国国XX国</div>
</div>