/*webkit内核*/
.dom::-webkit-scrollbar {
	width:0px;
	height:0px;
}

<!--针对火狐浏览器滚动条消失-->
<script src="https://cdn.bootcdn.net/ajax/libs/jquery.nicescroll/3.7.6/jquery.nicescroll.min.js"></script>
//针对火狐浏览器滚动条消失
        $(".dom").niceScroll({cursorborder:"",cursorcolor:"rgba(0,0,0,0)",boxzoom:true});