To implement animation on margin property with CSS, you can try to run the following code
Example
<!DOCTYPE html> <html> <head> <style> p { animation: mymove 3s infinite; margin: 20px; } @keyframes mymove { 70% { margin: 60px; } } </style> </head> <body> <p>This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! This is demo text! </p> </body> </html>