css:
.tab{
list-style-type: none;
display:-webkit-box;
display:-webkit-flex;
display:-ms-flexbox;
display:flex;
-webkit-flex-wrap:nowrap;
-ms-flex-wrap:nowrap;
flex-wrap:nowrap;
-webkit-box-pack:justify;
-webkit-justify-content:space-between;
-ms-flex-pack:justify;
justify-content:space-between;
background:#ccc;
padding:0;
overflow:auto;}
.tab-item{
-webkit-box-flex:1;
-webkit-flex:1 0 auto;
-ms-flex:1 0 auto;
flex:1 0 auto;
color:white;
padding:0 0.5rem;
}
html:
<ul class="tab margin-top5">
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
<li class="tab-item">篮球</li>
</ul>
css3 横向拖拽
原文地址：https://www.cnblogs.com/jhuang-com/p/8297816.html