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<!DOCTYPE html> <html> <style> a[target] {background-color: yellow} </style> <body> <h1>The Document Object</h1> <h2>The querySelectorAll() Method</h2> <p>The CSS selector a[target] gives links with a target a yellow background.</p> <p>Add a red border to all links with a target attribute.</p> <a href="https://w3schools.org.cn">w3schools.com</a> <a href="http://www.disney.com" target="_blank">disney.com</a> <a href="http://www.wikipedia.org" target="_top">wikipedia.org</a> <script> const nodeList = document.querySelectorAll("a[target]"); for (let i = 0; i < nodeList.length; i++) { nodeList[i].style.border = "10px solid red"; } </script> </body> </html>