To set the fill-mode for an animation with CSS, use the animation-fill-mode property. It has the values forwards, backward, both for both the directions, etc.
You can try to run the following code to set the fill-mode for animation;
Example
<!DOCTYPE html> <html> <head> <style> div { width: 150px; height: 200px; position: relative; background: red; animation-name: myanim; animation-duration: 2s; animation-fill-mode: forwards; } @keyframes myanim { from {left: 0px; background-color: green;} to {left: 200px; background-color: blue;} } </style> </head> <body> <div></div> </body> </html>