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<!DOCTYPE html> <html> <head> </head> <body> <p>Click the button to create a BASE element.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.createElement("BASE"); x.setAttribute("href", "https://w3schools.org.cn"); document.head.appendChild(x); document.getElementById("demo").innerHTML = "You have now created a BASE element in the HEAD section of your document."; } </script> </body> </html>
