优点知识Prometheus 入门到实战
flex + calc
HTML：
<div class="container">
<div class="inner">
<ol>
li*10 </ol>
</div></div>
CSS:
.container{
width: 960px;
margin: 0 auto;}ol{
display: flex;
justify-content: space-between;}li{
calc(25% - 8px) //20%*父元素宽度 - 8px}
