<div class="container">
<div class="box-1">
</div>
<div class="box-2">
</div>
</div>
div {
width: 100px;
height: 100px;
position: absolute;
}
.container {
width: 100%;
height: 400px;
}
.box-1 {
background: red;
animation-name: move;
animation-duration: 4s;
animation-direction: alternate;
animation-iteration-count: infinite;
animation-timing-function: linear;
}
.box-2 {
background: green;
top: 150px;
animation-name: move;
animation-duration: 4s;
animation-direction: alternate;
animation-iteration-count: infinite;
animation-timing-function: ease-in-out;
}
@keyframes move {
from {
left: 0;
}
to {
left: 400px;
}
}
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