<!-- popup.html --> <!DOCTYPE html> <html> <head> <title>Com Msgneed Popup</title> <style> body { width: 200px; height: 100px; font-family: Arial, sans-serif; text-align: center; padding: 20px; border: 1px solid #cccccc; border-radius: 5px; box-shadow: 0px 0px 10px rgba(0,0,0,0.2); } </style> </head> <body> <h1>Welcome to Com Msgneed App</h1> <button id="open-msgneed">Open Msgneed</button> <script src="popup.js"></script> </body> </html> You might want to add functionality to your popup.