#heater{display:flex;align-items:center;margin-left:10px;margin-right:10px}.el-form-item{margin-bottom:2px}.concentert{justify-content:center;text-align:center;align-items:center}.custom-icon{background-image:url(../img/weixin.78289dfe.jpg);background-size:cover;width:20px;height:20px;display:inline-block}