htriangle-down {

   height:;

   border-left:11rpx solid transparent;

   border-right:11rpx solid transparent;

   border-top:12rpx solid #475669;

}

 <view class="user-divide">

      <view  class="user-divide-line"></view>

 </view>

/* 下面的圆角 */

.user-divide {

    position: relative;

    height: 40rpx;

    width: 90%;

    left: 5%;

    background: #fff;

}

.user-divide:before {

    left: -10rpx;

}

.user-divide:after {

    right: -10rpx;

}

.user-divide:before, .user-divide:after {

    position: absolute;

    top:;

    content: "";

    width:36rpx;

    height: 36rpx;

    background-color: #5AA2E7;

    border-radius: 50%;

}

.user-divide-line {

    position: absolute;

    top: 50%;

    margin-top: -1px;

    border-top: 1px dashed #E0E6ED;

    width: 90%;

    left: 5%;

    right: 5%;

}

/* 箭头 */

.m-list-item.has-arrow::after {

  content: " ";

  display: inline-block;

  height: 18rpx;

  width: 18rpx;

  border-width: 2rpx 2rpx 0 0;

  border-color: #8492A6;

  border-style: solid;

  position: absolute;

  top: 50%;

  right: 30rpx;

}