分割线

 .dividing_line{
    position: relative;
    text-align: center;
    overflow: hidden;
    font-size: 14px;
    color: #999;
  }
  .dividing_line::before,.dividing_line::after{
    content: '';
    display: inline-block;
    width: 100%;
    height: 1px;
    position: absolute;
    background: #ccc;
    top: 50%;
  }
  .dividing_line::before{
    margin-left: -10px;
    transform: translateX(-100%);
  }
  .dividing_line::after{
    margin-left: 10px;
  }

<div class="dividing_line">分割线</div>