To implement animation on the border-color property with CSS, you can try to run the following code
Example
<!DOCTYPE html> <html> <head> <style> div { width: 500px; height: 300px; background: yellow; border: 10px solid gray; animation: myanim 3s infinite; background-position: bottom left; background-size: 50px; } @keyframes myanim { 20% { border-color: red; } } </style> </head> <body> <h2>Performing Animation for color of border</h2> <div></div> </body> </html>