javascript - JQuery to make div customized scroll bar always visible -

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i have table content marked div height of 200px. table content user input & dynamic . using jquery modulate scroll bar if use overflow-y: scroll !important; normal scroll appears @ beginning..
if div content crosses 200px height jquery scroll bar appears along normal scroll bar.

what want : want show jquery scroll bar visible irrespective of div height not normal scroll bar shown in below image.

error snapshot:

enter image description here

css:

<style type="text/css"> #boxscroll {     height: 200px;     width: 230px;        overflow-y: scroll !important;    } </style>

jquery:

<script src="js/jquery.min.js"></script> <script src="js/jquery.nicescroll.min.js"></script>

download jquery here... https://jquery-nicescroll.googlecode.com/files/jquery.nicescroll.340.zip

<script>   $(document).ready(function() {     var nicesx = $("#boxscroll").nicescroll({touchbehavior:false,cursorcolor:"#ccc",cursoropacitymax:0.8,cursorwidth:4,autohidemode:false});   }); </script>

html :

<div  id="boxscroll"> <table id="itemtable" width="230" border="0" cellspacing="0" cellpadding="0"> ....content goes here.... </table> </div> 

<script>   $(document).ready(function() {     var nicesx = $("#boxscroll").nicescroll({nativeparentscrolling: false,touchbehavior:false,cursorcolor:"#ccc",cursoropacitymax:0.8,cursorwidth:4,autohidemode:false});   }); </script>         <style>         #boxscroll {             height: 200px;             width: 230px;                overflow-y: hidden;    }         </style>

this should work.

for displaying scroll bar @ height:

.nicescroll-rails div{     display: inline !important;     min-height: 30px; } .nicescroll-rails {     display: inline !important; }

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