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<!DOCTYPE html> <html> <head> <style> a[target] { background-color: yellow; } </style> </head> <body> <p>The CSS selector a[target] makes sure that all links with a target attribute gets a yellow background:</p> <a href="../index.html">w3schools.com</a> <a href="../../www.disney.com/index.html" target="_blank">disney.com</a> <a href="../../www.wikipedia.org/index.html" target="_top">wikipedia.org</a> <p>Click the button to add a red border to all links in the document with a target attribute.</p> <button onclick="myFunction()">Try it</button> <p><strong>Note:</strong> The querySelectorAll() method is not supported in Internet Explorer 8 and earlier versions.</p> <script> function myFunction() { var x = document.querySelectorAll("a[target]"); var i; for (i = 0; i < x.length; i++) { x[i].style.border = "10px solid red"; } } </script> </body> </html>