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<!DOCTYPE html> <html> <body> <ul id="myList"> <li>Coffee</li> <li>Tea</li> <li>Water</li> <li>Soda</li> </ul> <button type="button" onclick="myFunction()">Change list-item marker</button> <script> function myFunction() { document.getElementById("myList").style.listStyleImage = "url('sqorange.gif')"; } </script> </body> </html>