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<!DOCTYPE html>
<html>
<body>
<h1>The Element Object</h1>
<h2>The querySelectorAll() Method</h2>
<p>Add a background color to all p elements in "myDIV":</p>
<div id="myDIV" style="border:1px solid black;">
  <h2>A Heading</h2>
  <p>A p element.</p>
  <p>A p element.</p>
  <p>A p element with class="example".</p>
</div>
<script>
const element = document.getElementById("myDIV");
const list = element.querySelectorAll("p");
for (let i = 0; i < list.length; i++) {
  list[i].style.backgroundColor = "red";
}
</script>
</body>
</html>