css/css-text/text-autospace/text-autospace-ligature-001-ref.html

<!DOCTYPE html>
<meta charset="utf-8">
<link rel="help" href="https://drafts.csswg.org/css-text-4/#text-autospace-property">
<style>
@font-face {
  font-family: ligature-font;
  src: url('/fonts/Lato-Medium-Liga.ttf');
}
#test-container {
  font-family: ligature-font;
  font-size: 40px;
  text-autospace: no-autospace;
}
.spacing-right {
  margin-right: 0.125em;
}
.spacing-left {
  margin-left: 0.125em;
}

</style>
<div id="test-container">
  <div>国<span class="spacing-left">fi</span></div>
  <div>国fi</div>
  <div><span class="spacing-right">fi</span>国</div>
  <div><span>fi</span>国</div>
  <div>国<span class="spacing-left spacing-right">fi</span>国</div>
  <div>国<span>fi</span>国</div>
</div>