To test it, create test.html
:
<body>
<div>
<span>
<p>para 1
<p>para 2
</span>
</div>
<script>
(() => {
console.log(document.querySelector('div').innerHTML);
})();
</script>
</body>
and open it. Look in console:
<span>
<p>para 1
</p><p>para 2
</p></span>