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<!DOCTYPE html> <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>
