first-line-first-letter-pseudo-elements-004-ref.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>MathML and ::first-line/::first-letter pseudo-elements (reference)</title>

<style>

  .firstline > span { background: lime; }

  .firstletter > span { background: lime; }

</style>

<ol>

  <li>PASS if first line is green:

    <math>

      <mtext><span class="firstline"><span>Hello,</span><br/>World!</span></mtext>

    </math>

  </li>

  <li>PASS if first letter is green:

    <math>

      <mtext><span class="firstletter"><span>H</span>ello, World!</span></mtext>

    </math>

  </li>

</ol>