通过css 控制边框的高度 注意示例中右边边框是没有定边的
.container {
display: inline-block;
background: #efefef;
height: 32px;
width:200px;
position: absolute;
}
.split::after{
content: " ";
border-left: 1px solid #000000;
display: inline-block;
height: 16px;
position: absolute;
top: 50%;
right: 0px;
margin-top: -8px;
}