Mobile HTML Code Runner HTML Code <!DOCTYPE html> <html> <head> <title>My Page</title> <style> body { font-family: Arial; text-align: center; padding: 20px; } h1 { color: #4CAF50; } </style> </head> <body> <h1>Hello World!</h1> <p>This is a mobile preview.</p> </body> </html> Preview Mobile Preview Close