<div class="item">
                <img src="../../assets/images!code_app.png" alt="" />
                <div>
                    5555</div>
                <p>微信扫一扫关注</p>
                <p>“快速预约挂号”</p>
              </div>




.item{

         display: flex;
        flex-direction: column;
        align-items: center;
     img {
          width: 130px;
          height: 130px;
        }
        p {
          margin: 5px 0px;
        }
    }

效果，一个盒子内的元素都居中