x
<html><body><h1>The Document Object</h1><h2>The getElementsByTagName() Method</h2><p>This is a p element</p><p>This is also a p element.</p><p>This is also a p element.Change the background color of all p elements in this document:</p><script>const collection = document.getElementsByTagName("P");for (let i = 0; i < collection.length; i++) { collection[i].style.backgroundColor = "red";}</script></body></html>