調整iframe滾動條失效

1：<iframe scrolling="auto" frameborder="0"  src="' + add + '" style="width:100%;height:100%;overflow:scroll;overflow-x:hidden">';


2：記得去掉iframe的標准，然后調整iframe下面的
body:/*滾動條樣式*/

body::-webkit-scrollbar {/*滾動條整體樣式*/
   width: 8px;     /*高寬分別對應橫豎滾動條的尺寸*/
   height: 20px;
   border-radius: 8px;
}
body::-moz-scrollbar {/*滾動條整體樣式*/
   width: 8px;     /*高寬分別對應橫豎滾動條的尺寸*/
   height: 20px;
   border-radius: 8px;
}
body::-webkit-scrollbar-thumb {/*滾動條里面小方塊*/
   -webkit-box-shadow: inset 0 0 5px  #3384ff;
   background: rgba(1,187,218,0.2);
   border-radius: 8px;
}
body::-moz-scrollbar-thumb {/*滾動條里面小方塊*/
   -webkit-box-shadow: inset 0 0 5px  #3384ff;
   background: rgba(1,187,218,0.2);
   border-radius: 8px;
}
body::-webkit-scrollbar-track {/*滾動條里面軌道*/
   -webkit-box-shadow: inset 0 0 5px rgba(4,231,250,0.6);
   border-radius: 0;
   background: rgba(3,10,28,0.6);
}
body::-moz-scrollbar-track {/*滾動條里面軌道*/
   -webkit-box-shadow: inset 0 0 5px rgba(4,231,250,0.6);
   border-radius: 0;
   background: rgba(3,10,28,0.6);
}
/*滾動條樣式end*/