css 禁止滚动条 测试

.sp-message-open {
      margin-top: 0px !important;
      overflow: hidden !important;
      left: 0 !important;
      right: 0 !important;
      top: 0 !important;
      bottom: 0 !important;
      position: fixed  !important;
    }

 //去除dom元素

    var t =document.getElementsByTagName("script")
    for(var i=0;i<t.length;i++)
    {
        t[i].parentNode.removeChild(t[i]);
        //t[i].remove();
    }
console.log(t);
var t =document.getElementsByTagName("meta")
    for(var i=0;i<t.length;i++)
    {
        t[i].parentNode.removeChild(t[i]);
        //t[i].remove();
    }
console.log(t);

// .sp-message-open

 ------------------------------------

   function func(index)
    {
        var obj = document.getElementsByTagName("script")[0];
        if(obj) //存在
        {
            obj.parentNode.removeChild(obj);
            console.log(index);
            func(index++);
        }
    }
    func(0);