Use the animation-duration property to set how long an animation should take to complete one cycle
Example
You can try to run the following code to implement the animation-duration property −
<!DOCTYPE html> <html> <head> <style> div { width: 150px; height: 200px; position: relative; background: red; animation-name: myanim; animation-duration: 2s; } @keyframes myanim { from {left: 0px; background-color: green;} to {left: 200px; background-color: blue;} } </style> </head> <body> <div></div> </body> </html>