请问用js怎样把这两张图做成动画,走一段距离后,沿原路线返回
做了几次,没做出来
<style>
.an{
width: 155px;
height: 88px;
animation: anim 0.6s infinite;
}
@keyframes anim{
from{background-image:url("1.png") ;}
to{background-image:url("2.png") ;}
}
</style>
<div class="an">
</div>