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<!DOCTYPE html> <html> <style> .mystyle { background-color: coral; padding: 16px; } </style> <body> <h1>The Element Object</h1> <h2>The className Property</h2> <div id="myDIV"> <p>I am myDIV.</p> </div> <p>Click the button to set a class for myDIV:</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("myDIV").className = "mystyle"; } </script> </body> </html>
