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<!DOCTYPE html> <html> <body> <h1>Hello World!</h1> <div id="myDiv" style="background-color:orange;">This is a div element.</div> <br> <button type="button" onclick="myFunction()">Get the background color of div</button> <script> function myFunction() { alert(document.getElementById("myDiv").style.backgroundColor); } </script> </body> </html>