分隔符一

scss代码：

.hr {
position: relative;
width: 100%;
height: 1px;
background-color: #858585;

&:before {
content: "";
position: absolute;
width: 30px;
height: 30px;
left: 50%;
top: -13px;
margin-left: -15px;
background-color: #FFFFFF;
}

&:after {
content: "";
position: absolute;
width: 10px;
height: 10px;
border-radius: 5px;
left: 50%;
top: -4px;
margin-left: -5px;
background-color: #858585;
}

html:

  <hr className="hr"/>

分隔符