1、自定义样式效果

2、vue代码

this.notifications = this.$notify({
              title: '',
              dangerouslyUseHTMLString: true,
              duration: obj.remindMethod==='3' ? 0:4500,
              customClass: 'notify-warning',
              offset: 50,
              showClose: false,
              message: this.$createElement(
                "div",
                null,
                [
                this.$createElement(
                  "div",
                  {class:'alertTile'}
                ),
                this.$createElement(
                  "div",
                  {class:'alertTile_1'},
                  "报警"
                ),
                this.$createElement(
                  "div",
                  {class:'alertContant'},
                  [
                    this.$createElement(
                      "span",
                      "报警内容" + ":" + obj.data
                    ),
                    this.$createElement(
                      "br",
                      null,
                    ),
                    this.$createElement(
                      "div",
                      {class:'alertContant'},
                      "报警时间："+obj.time
                    ),
                  ]
                   
                ),
                this.$createElement(
                  "button",
                  {
                    class:'close_notify',
                    on: {
                      click: _this.closeNotify.bind(_this, obj.remindMethod),
                    },
                  },
                  obj.buttonName
                ),
                ]
              ),
            });

3、CSS、不能用scoped修饰

<style>
  .el-notification__content {
  margin-top:30px
}
.notify-warning {
  background-image: url("../../../assets/images/baojing_box_red.png") !important;
  background-size: 100% 100% !important;
  width: 420px !important;
  height: 120px !important;
  background-position-y: 0px !important;
  background-color: rgba(255, 255, 255, 0) !important;
  margin-top: 50px !important;
  border: none !important;
  box-shadow: 0 2px 12px 0 rgb(0 0 0 / 0) !important;
}
.el-notification__group {
  margin-left: 130px !important;
}
.alertTile_1 {
  position: absolute !important;
  background-image: url("../../../assets/images/alert_red_3.png") !important;
  width: 128px !important;
  height: 128px !important;
  left: 0px !important;
  top: 0px !important;
  border-radius: 64px !important;
  color: white !important;
  line-height: 128px !important;
  text-align: center !important;
  position: relative;
  font-size: 16px !important;
}
.alertTile {
  position: absolute !important;
  background-image: url("../../../assets/images/alert_red_1.png") !important;
  width: 128px !important;
  height: 128px !important;
  left: 0px !important;
  top: 0px !important;
  border-radius: 64px !important;
  color: white !important;
  line-height: 128px !important;
  text-align: center !important;
  position: relative;
  -webkit-transform: rotate(360deg);
  animation: myfirst 3s linear infinite;
  -moz-animation: myfirst 3s linear infinite;
  -webkit-animation: myfirst 3s linear infinite;
  -o-animation: myfirst 3s linear infinite;
  font-size: 16px !important;
}

.alertContant{
  word-wrap:break-word;
  color:white;
}

@-webkit-keyframes myfirst {
  from {
    -webkit-transform: rotate(360deg);
  }

  to {
    -webkit-transform: rotate(0deg);
  }
}
.el-notification__closeBtn{
  top:25px
}

.close_notify{
    color: #fff;
    cursor: pointer;
    width: 50px;
    height: 22px;
    line-height: 20px;
    background: #0f83f7;
    text-align: center;
    position: absolute;
    bottom: 15px;
    right: 5px;
}

</style>

4、自定义关闭按钮

//点击事件回调
    closeNotify(type) {
      console.log("hahah");
      console.log(type);
      if(type === '2'){
      console.log("自动关闭，流程。。");
      }
      if(type === '3'){
      console.log("手动确认，流程。。");
      }
      this.notifications.close();
    },