To implement animation on the background-color property with CSS, you can try to run the following code
Example
<!DOCTYPE html> <html> <head> <style> div { width: 400px; height: 300px; background: yellow; animation: myanim 3s infinite; } @keyframes myanim { 20% { background-color: maroon; } } </style> </head> <body> <div></div> </body> </html>