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<!DOCTYPE html> <html> <style> div { border: 1px solid black; margin-bottom: 10px; } </style> <body> <h1>The Document Object</h1> <h2>The querySelectorAll() Method</h2> <p>Change the background color of every p element where the parent is a div element:</p> <div> <h3>H3 element</h3> <p>I am a p element, my parent is a div element.</p> </div> <div> <h3>H3 element</h3> <p>I am a p element, my parent is also a div element.</p> </div> <script> const nodeList = document.querySelectorAll("div > p"); for (let i = 0; i < nodeList.length; i++) { nodeList[i].style.backgroundColor = "red"; } </script> </body> </html>
