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<!DOCTYPE html> <html> <head> <title>Let's Coding Example</title> </head> <body> <div id="html-div"> </div> <script> // Example: Adding a class let myElement = document.getElementById('myElementId'); myElement.classList.add('myClass'); // Example: Removing a class myElement.classList.remove('myClass'); // Example: Toggling a class myElement.classList.toggle('active'); </script> </body> </html>
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