Stopping a CSS3 Animation on last frame

Question

I have a 4 part CSS3 animation playing on click - but the last part of the animation is meant to take it off the screen.

However, it always goes back to its origin

Answer 1

The best way seems to put the final state at the main part of css. Like here, i put width to 220px, so that it finally becomes 220px. But starting to 0px;

div.menu-item1 {
  font-size: 20px;
  border: 2px solid #fff;
  width: 220px;
  animation: slide 1s;
  -webkit-animation: slide 1s; /* Safari and Chrome */
}
@-webkit-keyframes slide { /* Safari and Chrome */
  from {width:0px;}
  to {width:220px;}
}