纯css实现流向性和动态线条效果的代码

@keyframes mymove {
  from{left:0px;}
  to{left:70px;}
}
.father{
background: #748096;
border-radius:5px;
position: relative;
: 70px;
left: -5px;
}

.moveson {
width:20px;
height:8px;
background:#a0e80c;
border-radius: 5px;
animation:mymove 2s linear infinite;
position:relative;
}

<div class="father">
     <div class="moveson"></div>
</ediv>