animation-direction

Determines whether an animation runs forward or in reverse on some or all of its cycles.

Syntax

animation-direction: <value>;

where <value> can be one of the following:

  • normal: Animation will play as specified.
  • reverse: Animation will be played in the reverse direction as specified.
  • alternate: causes the cycles to alternate between normal and reverse.
  • alternate-reverse: causes the cycles to alternate between reverse and normal.

Example 1

Reverse the direction of the animation:

div {
height: 200px;
width: 200px;
background-color: blue;
animation-name: slideleft;
animation-duration: 4s;
animation-direction: reverse;
}
@keyframes slideleft {
from {
margin-left: 100%;
}
to {
margin-left: 0%;
}
}

Example 2

Set the first direction to alternate and the second direction to alternate-reverse:

div {
height: 200px;
width: 200px;
background-color: blue;
animation-name: fadeout, slideright;
animation-duration: 4s, 4000ms;
animation-iteration-count: 2;
animation-direction: alternate, alternate-reverse;
}
@keyframes fadeout {
from {
background-color: blue;
}
to {
background-color: white;
}
}
@keyframes slideright {
from {
margin-left: 0%;
}
to {
margin-left: 100%;
}
}

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