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web design

jQuery custom content scroller

jQuery custom content scroller

Highly customizable custom scrollbar jQuery plugin. Features include vertical and/or horizontal scrollbar(s), adjustable scrolling momentum, mouse-wheel (via jQuery mousewheel plugin), keyboard and touch support, ready-to-use themes and customization via CSS, RTL direction support, option parameters for full control of scrollbar functionality, methods for triggering actions like scroll-to, update, destroy etc., user-defined callbacks and more.

Current version 3.1.5 (Changelog)
Upgrading from version 2

When upgrading from version 2.x to 3.x it’s important to use version 3 CSS and .png files. Version 3 is backwards compatible but it’s also a huge overhaul. One significant change is that you don’t need to call the update method manually (the script does it automatically). For more info see changelog.

Version 2 is still maintained and updated here.

How to use it

Get started by downloading the archive which contains the plugin files (and a large amount of HTML demos and examples). Extract and upload jquery.mCustomScrollbar.concat.min.js, jquery.mCustomScrollbar.css and mCSB_buttons.png to your web server (alternatively you can load plugin files from a CDN).

Instead of hosting the plugin files on your web server, you can load them directly from a CDN like jsdelivr, Github etc.

  • jsdelivr versioned/minified
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  • Github latest/minified
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Include jquery.mCustomScrollbar.css in the head tag your HTML document (more info)

jquery.mCustomScrollbar.css contains the styling of the custom scrollbar and themes. It should normally be included in the head tag of your html (typically before any script tags). If you wish to reduce http requests and/or have all your website stylesheet in a single file, you should move/copy scrollbars styling in your main CSS document.

mCSB_buttons.png contains all the button arrows (up, down, left and right) as image sprites for all scrollbar themes. The plugin archive contains the PSD source (source-files/mCSB_buttons.psd) so you can change them or add your own. This file should be in the same directory with plugin stylesheet.

<link rel="stylesheet" href="/path/to/jquery.mCustomScrollbar.css" />

Include jQuery library (if your project doesn’t use it already) and jquery.mCustomScrollbar.concat.min.js in the head tag or at the very bottom of your document, just before the closing body tag

Some frameworks and CMS include jQuery library in the head tag to make sure it’s loaded when other scripts request it. Usually, including .js files on the bottom of the HTML document (just before the closing body tag) is recommended for better performance. In any case, jQuery must be included first, before plugin scripts.

<script src=""></script>
<script src="/path/to/jquery.mCustomScrollbar.concat.min.js"></script>


The element(s) you want to add scrollbar(s) should have the typical CSS properties of an overflowed block which are a height (or max-height) value, an overflow value of auto (or hidden) and content long enough to require scrolling. For horizontal scrollbar, the element should have a width (or max-width) value set.

If you prefer to set your element’s height/width via javascript, you can use the setHeight/setWidth option parameters.


Initialize via javascript

After files inclusion, call mCustomScrollbar function on the element selector you want to add the scrollbar(s)


more info

The code is wrapped in (function($){ ... })(jQuery);. This ensures no conflict between jQuery and other libraries using $ shortcut (see Avoiding Conflicts with Other Libraries for more info). The plugin function is called in $(window).on("load") so it executes after all page elements (like images) are loaded.

You can change the function selector ".content" to any selector you want (an element id, class name, js variable etc.). For instance, if you want custom scrollbars to apply on the element with id content-1, you simply do:


You may also have multiple selectors by inserting comma separated values


The above code adds custom scrollbars to a)every element with class name content and b)the element with id content-1.

Additionally, you may want to call mCustomScrollbar multiple times within a page in order to set different options (configuration and option parameters explained below) for each selector


Initialize via HTML

Add the class mCustomScrollbar to any element you want to add custom scrollbar(s) with default options. Optionally, set its axis via the HTML data attribute data-mcs-axis (e.g. "x" for horizontal and "y" for vertical) and its theme via data-mcs-theme. For example:

<div class="mCustomScrollbar" data-mcs-theme="dark">
  <!-- your content -->

Basic configuration & option parameters


By default, the script applies a vertical scrollbar. To add a horizontal or 2-axis scrollbars, invoke mCustomScrollbar function with the axis option set to "x" or "yx" respectively

    axis:"x" // horizontal scrollbar
    axis:"yx" // vertical and horizontal scrollbar


To quickly change the appearance of the scrollbar, set the theme option parameter to any of the ready-to-use themes available in jquery.mCustomScrollbar.css, for example:



You can configure your scrollbar(s) using the following option parameters on mCustomScrollbar function
Usage $(selector).mCustomScrollbar({ option: value });

setWidth: false
Set the width of your content (overwrites CSS width), value in pixels (integer) or percentage (string).
setHeight: false
Set the height of your content (overwrites CSS height), value in pixels (integer) or percentage (string).
setTop: 0
Set the initial css top property of content, accepts string values (css top position).
Example: setTop: "-100px".
setLeft: 0
Set the initial css left property of content, accepts string values (css left position).
Example: setLeft: "-100px".
axis: "string"
Define content’s scrolling axis (the type of scrollbars added to the element: vertical and/of horizontal).
Available values: "y", "x", "yx".

  • axis: "y" – vertical scrollbar (default)
  • axis: "x" – horizontal scrollbar
  • axis: "yx" – vertical and horizontal scrollbars
scrollbarPosition: "string"
Set the position of scrollbar in relation to content.
Available values: "inside", "outside".
Setting scrollbarPosition: "inside" (default) makes scrollbar appear inside the element. Setting scrollbarPosition: "outside" makes scrollbar appear outside the element. Note that setting the value to "outside" requires your element (or parent elements) to have CSS position: relative (otherwise the scrollbar will be positioned in relation to document’s root element).
scrollInertia: integer
Set the amount of scrolling momentum as animation duration in milliseconds.
Higher value equals greater scrolling momentum which translates to smoother/more progressive animation. Set to 0 to disable.
autoDraggerLength: boolean
Enable or disable auto-adjusting scrollbar dragger length in relation to scrolling amount (same bahavior with browser’s native scrollbar).
Set autoDraggerLength: false when you want your scrollbar to (always) have a fixed size.
autoHideScrollbar: boolean
Enable or disable auto-hiding the scrollbar when inactive.
Setting autoHideScrollbar: true will hide the scrollbar(s) when scrolling is idle and/or cursor is out of the scrolling area.
Please note that some special themes like “minimal” overwrite this option.
autoExpandScrollbar: boolean
Enable or disable auto-expanding the scrollbar when cursor is over or dragging the scrollbar.
alwaysShowScrollbar: integer
Always keep scrollbar(s) visible, even when there’s nothing to scroll.

  • alwaysShowScrollbar: 0 – disable (default)
  • alwaysShowScrollbar: 1 – keep dragger rail visible
  • alwaysShowScrollbar: 2 – keep all scrollbar components (dragger, rail, buttons etc.) visible
snapAmount: integer
Make scrolling snap to a multiple of a fixed number of pixels. Useful in cases like scrolling tabular data, image thumbnails or slides and you need to prevent scrolling from stopping half-way your elements. Note that your elements must be of equal width or height in order for this to work properly.
To set different values for vertical and horizontal scrolling, use an array: [y,x]
snapOffset: integer
Set an offset (in pixels) for the snapAmount option. Useful when for example you need to offset the snap amount of table rows by the table header.
mouseWheel:{ enable: boolean }
Enable or disable content scrolling via mouse-wheel.
mouseWheel:{ scrollAmount: integer }
Set the mouse-wheel scrolling amount (in pixels). The default value "auto" adjusts scrolling amount according to scrollable content length.
mouseWheel:{ axis: "string" }
Define the mouse-wheel scrolling axis when both vertical and horizontal scrollbars are present.
Set axis: "y" (default) for vertical or axis: "x" for horizontal scrolling.
mouseWheel:{ preventDefault: boolean }
Prevent the default behaviour which automatically scrolls the parent element when end or beginning of scrolling is reached (same bahavior with browser’s native scrollbar).
mouseWheel:{ deltaFactor: integer }
Set the number of pixels one wheel notch scrolls. The default value “auto” uses the OS/browser value.
mouseWheel:{ normalizeDelta: boolean }
Enable or disable mouse-wheel (delta) acceleration. Setting normalizeDelta: true translates mouse-wheel delta value to -1 or 1.
mouseWheel:{ invert: boolean }
Invert mouse-wheel scrolling direction. Set to true to scroll down or right when mouse-wheel is turned upwards.
mouseWheel:{ disableOver: [array] }
Set the tags that disable mouse-wheel when cursor is over them.
Default value:
scrollButtons:{ enable: boolean }
Enable or disable scrollbar buttons.
scrollButtons:{ scrollAmount: integer }
Set the buttons scrolling amount (in pixels). The default value "auto" adjusts scrolling amount according to scrollable content length.
scrollButtons:{ scrollType: "string" }
Define the buttons scrolling type/behavior.

  • scrollType: "stepless" – continuously scroll content while pressing the button (default)
  • scrollType: "stepped" – each button click scrolls content by a certain amount (defined in scrollAmount option above)
scrollButtons:{ tabindex: integer }
Set a tabindex value for the buttons.
keyboard:{ enable: boolean }
Enable or disable content scrolling via the keyboard.
The plugin supports the directional arrows (top, left, right and down), page-up (PgUp), page-down (PgDn), Home and End keys.
keyboard:{ scrollAmount: integer }
Set the keyboard arrows scrolling amount (in pixels). The default value "auto" adjusts scrolling amount according to scrollable content length.
keyboard:{ scrollType: "string" }
Define the keyboard arrows scrolling type/behavior.

  • scrollType: "stepless" – continuously scroll content while pressing the arrow key (default)
  • scrollType: "stepped" – each key release scrolls content by a certain amount (defined in scrollAmount option above)
contentTouchScroll: integer
Enable or disable content touch-swipe scrolling for touch-enabled devices.
To completely disable, set contentTouchScroll: false.
Integer values define the axis-specific minimum amount required for scrolling momentum (default: 25).
documentTouchScroll: boolean
Enable or disable document touch-swipe scrolling for touch-enabled devices.
advanced:{ autoExpandHorizontalScroll: boolean }
Auto-expand content horizontally (for "x" or "yx" axis).
If set to true, content will expand horizontally to accommodate any floated/inline-block elements.
Setting its value to 2 (integer) forces the non scrollHeight/scrollWidth method. A value of 3 forces the scrollHeight/scrollWidth method.
advanced:{ autoScrollOnFocus: "string" }
Set the list of elements/selectors that will auto-scroll content to their position when focused.
For example, when pressing TAB key to focus input fields, if the field is out of the viewable area the content will scroll to its top/left position (same bahavior with browser’s native scrollbar).
To completely disable this functionality, set autoScrollOnFocus: false.
advanced:{ updateOnContentResize: boolean }
Update scrollbar(s) automatically on content, element or viewport resize.
The value should be true (default) for fluid layouts/elements, adding/removing content dynamically, hiding/showing elements etc.
advanced:{ updateOnImageLoad: boolean }
Update scrollbar(s) automatically each time an image inside the element is fully loaded.
Default value is auto which triggers the function only on "x" and "yx" axis (if needed).
The value should be true when your content contains images and you need the function to trigger on any axis.
advanced:{ updateOnSelectorChange: "string" }
Update scrollbar(s) automatically when the amount and size of specific selectors changes.
Useful when you need to update the scrollbar(s) automatically, each time a type of element is added, removed or changes its size.
For example, setting updateOnSelectorChange: "ul li" will update scrollbars each time list-items inside the element are changed.
Setting the value to true, will update scrollbars each time any element is changed.
To disable (default) set to false.
advanced:{ extraDraggableSelectors: "string" }
Add extra selector(s) that’ll release scrollbar dragging upon mouseup, pointerup, touchend etc.
Example: extraDraggableSelectors: ".myClass, #myID"
advanced:{ releaseDraggableSelectors: "string" }
Add extra selector(s) that’ll allow scrollbar dragging upon mousemove/up, pointermove/up, touchend etc.
Example: releaseDraggableSelectors: ".myClass, #myID"
advanced:{ autoUpdateTimeout: integer }
Set the auto-update timeout in milliseconds.
Default timeout: 60
theme: "string"
Set the scrollbar theme.
View all ready-to-use themes
All themes are contained in plugin’s CSS file (jquery.mCustomScrollbar.css).
Default theme: "light"
      onCreate: function(){}
A function to call when plugin markup is created.
      console.log("Plugin markup generated");
      onInit: function(){}
A function to call when scrollbars have initialized (demo).
      console.log("Scrollbars initialized");
      onScrollStart: function(){}
A function to call when scrolling starts (demo).
      console.log("Scrolling started...");
      onScroll: function(){}
A function to call when scrolling is completed (demo).
      console.log("Content scrolled...");
      whileScrolling: function(){}
A function to call while scrolling is active (demo).
      onTotalScroll: function(){}
A function to call when scrolling is completed and content is scrolled all the way to the end (bottom/right) (demo).
      console.log("Scrolled to end of content.");
      onTotalScrollBack: function(){}
A function to call when scrolling is completed and content is scrolled back to the beginning (top/left) (demo).
      console.log("Scrolled back to the beginning of content.");
      onTotalScrollOffset: integer
Set an offset for the onTotalScroll option.
For example, setting onTotalScrollOffset: 100 will trigger the onTotalScroll callback 100 pixels before the end of scrolling is reached.
      onTotalScrollBackOffset: integer
Set an offset for the onTotalScrollBack option.
For example, setting onTotalScrollBackOffset: 100 will trigger the onTotalScrollBack callback 100 pixels before the beginning of scrolling is reached.
      alwaysTriggerOffsets: boolean
Set the behavior of calling onTotalScroll and onTotalScrollBack offsets.
By default, callback offsets will trigger repeatedly while content is scrolling within the offsets.
Set alwaysTriggerOffsets: false when you need to trigger onTotalScroll and onTotalScrollBack callbacks once, each time scroll end or beginning is reached.
      onOverflowY: function(){}
A function to call when content becomes long enough and vertical scrollbar is added.
      console.log("Vertical scrolling required");
      onOverflowX: function(){}
A function to call when content becomes wide enough and horizontal scrollbar is added.
      console.log("Horizontal scrolling required");
      onOverflowYNone: function(){}
A function to call when content becomes short enough and vertical scrollbar is removed.
      console.log("Vertical scrolling is not required");
      onOverflowXNone: function(){}
A function to call when content becomes narrow enough and horizontal scrollbar is removed.
      console.log("Horizontal scrolling is not required");
      onBeforeUpdate: function(){}
A function to call right before scrollbar(s) are updated.
      console.log("Scrollbars will update");
      onUpdate: function(){}
A function to call when scrollbar(s) are updated.
      console.log("Scrollbars updated");
      onImageLoad: function(){}
A function to call each time an image inside the element is fully loaded and scrollbar(s) are updated.
      console.log("Image loaded");
      onSelectorChange: function(){}
A function to call each time a type of element is added, removed or changes its size and scrollbar(s) are updated.
      console.log("Scrollbars updated");
live: "string"
Enable or disable applying scrollbar(s) on all elements matching the current selector, now and in the future.
Set live: true when you need to add scrollbar(s) on elements that do not yet exist in the page. These could be elements added by other scripts or plugins after some action by the user takes place (e.g. lightbox markup may not exist untill the user clicks a link).
If you need at any time to disable or enable the live option, set live: "off" and "on" respectively.
You can also tell the script to disable live option after the first invocation by setting live: "once".
liveSelector: "string"
Set the matching set of elements (instead of the current selector) to add scrollbar(s), now and in the future.

Plugin methods

Ways to execute various plugin actions programmatically from within your script(s).


Usage $(selector).mCustomScrollbar("update");

Call the update method to manually update existing scrollbars to accommodate new content or resized element(s). This method is by default called automatically by the script (via updateOnContentResize option) when the element itself, its content or scrollbar size changes.

view examples

/* initialize plugin with auto-update options disabled */
    updateOnContentResize: false,
    updateOnImageLoad: false

/* at some point in your js script/code update scrollbar manually */


Usage $(selector).mCustomScrollbar("scrollTo",position,options);

Call the scrollTo method to programmatically scroll the content to the position parameter (demo).

position parameter

Position parameter can be:

  • "string"
    • e.g. element selector: "#element-id"
    • e.g. special pre-defined position: "bottom"
    • e.g. number of pixels less/more: "-=100"/"+=100"
  • integer
    • e.g. number of pixels: 100
  • [array]
    • e.g. different y/x position: [100,50]
  • object/function
    • e.g. jQuery object: $("#element-id")
    • e.g. js object: document.getelementbyid("element-id")
    • e.g. function: function(){ return 100; }

Pre-defined position strings:

  • "bottom" – scroll to bottom
  • "top" – scroll to top
  • "right" – scroll to right
  • "left" – scroll to left
  • "first" – scroll to the position of the first element within content
  • "last" – scroll to the position of the last element within content

view examples

Scroll to element with id “#el-1″


Scroll to top


Scroll by 100 pixels down or right

var val=100;

Scroll by 100 pixels up or left


Scroll by 100 pixels down and by 50 pixels right


Scroll to the fifth paragraph


Scroll to the last element within your content


Scroll to some variable value

var val=document.getelementbyid("element-id");

Scroll to 300 pixels


Method options

scrollInertia: integer
Scroll-to duration, value in milliseconds.
scrollEasing: "string"
Scroll-to animation easing, values: "linear", "easeOut", "easeInOut".
moveDragger: boolean
Scroll scrollbar dragger (instead of content).
timeout: integer
Set a timeout for the method (the default timeout is 60 ms in order to work with automatic scrollbar update), value in milliseconds.
callbacks: boolean
Trigger user defined callbacks after scroll-to completes.


Usage $(selector).mCustomScrollbar("stop");

Stops any running scrolling animations (usefull when you wish to interupt a previously scrollTo method call).


Usage $(selector).mCustomScrollbar("disable");

Calling disable method will temporarily disable the scrollbar (demo). Disabled scrollbars can be re-enable by calling the update method.

To disable the scrollbar and reset its content position, set the method’s reset parameter to true


view examples

/* initialize plugin */

/* at some point in your js script/code disable scrollbar */

/* re-enable scrollbar as needed */


Usage $(selector).mCustomScrollbar("destroy");

Calling destroy method will completely remove the custom scrollbar and return the element to its original state (demo).

view examples

/* initialize plugin */

/* at some point in your js script/code destroy scrollbar */

Scrollbar styling & themes

You can design and visually customize your scrollbars with pure CSS, using jquery.mCustomScrollbar.css which contains the default/basic styling and all scrollbar themes.

The easiest/quickest way is to select a ready-to-use scrollbar theme. For example:


View all ready-to-use themes

You can modify the default styling or any theme either directly in jquery.mCustomScrollbar.css or by overwriting the CSS rules in another stylesheet.

Creating a new scrollbar theme

Create a name for your theme (e.g. “my-theme”) and set it as the value of the theme option


Your element will get the class “mCS-my-theme” (your theme-name with “mCS” prefix), so you can create your CSS using the .mCS-my-theme in your rules. For instance:

.mCS-my-theme.mCSB_scrollTools .mCSB_dragger .mCSB_dragger_bar{ background-color: red; }
.mCS-my-theme.mCSB_scrollTools .mCSB_draggerRail{ background-color: white; } 
/* and so on... */

In the same manner you can clone any existing theme (e.g. “dark”), change its selector (e.g. .mCS-dark) to your own theme name (e.g. .mCS-my-theme) and modify its CSS rules.

Scrollbar markup

The plugin applies specific id (unique) and/or classes to every scrollbar element/component, meaning that you can target and modify any scrollbar in more than one ways.

For example, every element with a scrollbar gets a unique class in the form of _mCS_1, _mCS_2 etc. Every scrollbar container element gets a unique id in the form of mCSB_1_scrollbar_vertical, mCSB_2_scrollbar_vertical etc. Every scrollbar dragger gets a unique id in the form of mCSB_1_dragger_vertical, mCSB_2_dragger_vertical etc. in addition to the class mCSB_dragger. All these mean that you can do stuff like:

._mCS_1 .mCSB_dragger .mCSB_dragger_bar{ background-color: red; }

._mCS_2 .mCSB_dragger .mCSB_dragger_bar{ background-color: green; }

#mCSB_3_dragger_vertical .mCSB_dragger_bar{ background-color: blue; }

#mCSB_1_scrollbar_vertical .mCSB_dragger{ height: 100px; }

#mCSB_1_scrollbar_horizontal .mCSB_dragger{ width: 100px; }

.mCSB_1_scrollbar .mCSB_dragger .mCSB_draggerRail{ width: 4px; }

Custom scrollbar layout

User-defined callbacks

You can trigger your own js function(s) by calling them inside mCustomScrollbar callbacks option parameter


function myCustomFn(el){

In the example above, each time a scroll event ends and content has stopped scrolling, the content’s top position will be logged in browser’s console. There are available callbacks for each step of the scrolling event:

  • onScrollStart – triggers the moment a scroll event starts
  • whileScrolling – triggers while scroll event is running
  • onScroll – triggers when a scroll event completes
  • onTotalScroll – triggers when content has scrolled all the way to bottom or right
  • onTotalScrollBack – triggers when content has scrolled all the way back to top or left

You can set an offset value (pixels) for both onTotalScroll and onTotalScrollBack by setting onTotalScrollOffset and onTotalScrollBackOffset respectively (view example).

The following will trigger the callback function when content has scrolled to bottom minus 100 pixels

            console.log("scrolled to bottom");

By default, onTotalScroll and onTotalScrollBack callbacks are triggered repeatedly. To prevent multiple calls when content is within their offset, set alwaysTriggerOffsets option to false (view example).

            console.log("scrolled to bottom");

Additional callbacks:

Returning values

The script returns a number of values and objects related to scrollbar that you can use in your own functions

  • this – the original element containing the scrollbar(s)
  • this.mcs.content – the original content wrapper as jquery object
  • – content’s top position (pixels)
  • this.mcs.left – content’s left position (pixels)
  • this.mcs.draggerTop – scrollbar dragger’s top position (pixels)
  • this.mcs.draggerLeft – scrollbar dragger’s left position (pixels)
  • this.mcs.topPct – content vertical scrolling percentage
  • this.mcs.leftPct – content horizontal scrolling percentage
  • this.mcs.direction – content’s scrolling direction (y or x)

view examples

Load more content when scrolled to bottom


Run code when at least half of the content is scrolled

            var pct=this.mcs.topPct;
              /* do something... */

Plugin-specific jQuery expressions

Select element(s) in your content that are within scrollable viewport.
As condition: $("#myID").is(":mcsInView");
Select overflowed element(s) with visible scrollbar.
As condition: $(".content").is(":mcsOverflow");
Select element(s) in your content that are in view of the scrollable viewport. Using the exact parameter will include elements that have any part of them (even 1 pixel) in view of the scrollable viewport.
As condition: $("#myID").is(":mcsInSight");, $("#myID").is(":mcsInSight(exact)");

Plugin dependencies & requirements


This work is released under the MIT License.
You are free to use, study, improve and modify it wherever and however you like.

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Post a comment

Comments pages: 1 77 78 79 80 81 84

  1. Riya
    Posted on April 25, 2017 at 08:27 Permalink

    I want scroll in desktop when we swipe on the screen and releaseDraggableSelectors doesn’t seem to work properly.

  2. Patryk Kloz
    Posted on April 22, 2017 at 14:48 Permalink

    Hello there, not sure if You still support this, but first of all – thank you for such a great library.
    I have a problem – I’m using mCustomScrollbar for whole page only, and it looks just great on desktop, but I would like to disable it (full function) for mobile devices.

    The problem is that when I use your library, on mobile devices everything is laggy, I can’t use Owl Carousel by sliding fingers, and header from webbrowser is not hiding.

    Screens below:
    With Scrollbar
    Without Scrollbar

    I really would love to use Your library, but I need some solution to totally disable it on mobile devices.
    Any ideas?

    • Patryk Kloz
      Posted on April 23, 2017 at 13:19 Permalink

      Helo once more,
      I’ve get rid of this by… You will never guess… by making mistake in code – really, little mistake in script let me achieve what I’ve really wanted.

      Anyway I’ve nocticed that on desktop using fullpage solution (when your library is applied to body) disabled my addon (floating widget), and few other solutions like a hiding topbar above my menu bar – the second one is not so important. widget is visible for about 2-3 seconds, then dissapears, and in the console I have a message Refresh the page for downloading source code... – something like that..

      Waiting for some solution,
      I can send some pictures if needed.

  3. Soroush
    Posted on April 17, 2017 at 12:18 Permalink

    Hi, first thanks for this library.
    question: How i get distance from bottom when scroll ?


  4. Ravi
    Posted on April 10, 2017 at 14:40 Permalink

    is it possible to use this code to change the browser scroll bar ?

  5. Hamed
    Posted on April 10, 2017 at 13:40 Permalink


    <main> <section class="class1"></section> <section class="class2"></section> <section class="class3"></section> <section class="class4"></section> </main>

    i want add a class to each section when view sections. is it possible. i use many code for this issue but i can’t success

    for example if in scroll i view class1 add a class to this section. and if when arrive to class2 add a class (for example visible) to this section.

    is it possible?

    thank you

  6. Andreco Castillo
    Posted on March 10, 2017 at 18:26 Permalink

    It works for me whit content ajax.

    $vista = responseHTML;
    $(“#col_tareas”).mCustomScrollbar({theme: “minimal-dark”});


  7. Abbas Tahir
    Posted on March 10, 2017 at 15:55 Permalink


    I want to scale(1.value(1++)) an image using css on horizontal scroll.
    Please help.

    Abbas Tahir

  8. Vijith V Balakrishnan
    Posted on March 10, 2017 at 11:17 Permalink

    Very cool…:)

  9. ChuQ
    Posted on March 9, 2017 at 10:41 Permalink

    Hi. First, I would like to say thank you for your great plugin. As I am quite new to jQuery and javascript stuff…I would like to ask if I have created a dropdown list with 200 options with mCustomScrollBar… but currently I can only scroll a very little part of it instead of the full list… Can I hard code it so the scrollbar will follow my scroll to the top/bottom? Thank you so much again. Best regards!

  10. Biswajit Paul
    Posted on March 3, 2017 at 12:25 Permalink

    How to stop initializing mCustomScrollbar for a content have class mCustomScrollbar.

  11. Parkash Kumar
    Posted on March 2, 2017 at 14:44 Permalink

    Is there any option to show horizontal scrollbar scrolled to specific element on initialization?

  12. Amit
    Posted on March 1, 2017 at 19:42 Permalink

    I try to add or remove class on page scroll but it’s not working with the custom scroll bar plugging without the plug in its working fine

    Please help in this

    If possible please provide a Pencode example

  13. sunsunsun
    Posted on February 14, 2017 at 12:24 Permalink

    Hey there – great plugin. Is it possible to move (= “scroll”) the inner container via “translate” instead of “left/top”? I think this would greatly improve the performance on very large elements to scroll..

    • Math
      Posted on March 18, 2017 at 01:23 Permalink

      Hey did you find a way to move the content using translate instead of “left/top” with custom scrollbar ?

  14. joban91
    Posted on February 13, 2017 at 19:28 Permalink

    Is there any way to prevent the onScroll event from triggering until someone has let up off the dragger bar?

  15. Aman Chandra
    Posted on February 10, 2017 at 14:43 Permalink

    The plugin is not compatible with jquery 2.1.4.

  16. Ankush
    Posted on February 2, 2017 at 12:57 Permalink

    I observe flickering effect on IE browser. I’m using accordion within a max-height div with mCustomScrollBar. Wherever i open any accordion, scrollbar visible for 1 sec and invisible after that yet scrollbar is not required for this particular scenario. Please help. Thanks in advance.

  17. Filipi
    Posted on January 25, 2017 at 02:19 Permalink

    Is it possible colobox with nested?

  18. paulo
    Posted on January 24, 2017 at 18:13 Permalink

    Hey, there is a way to disable the scrollbar if im in a mobile? thanks

  19. sanjay
    Posted on January 24, 2017 at 07:37 Permalink

    We are using malihu custom scrollbar and facing an issue.
    I want to use infinite scrolling for my appliction. I don’t know how to use that callbacks. please help me out.

  20. Carlos
    Posted on January 22, 2017 at 21:50 Permalink

    Hi, is there a way to trigger the click and the double click event of an element in mobile (android, iOS)?, it works like a charm in desktop.

    Am i missing something?

    $(".class").mCustomScrollbar({ axis:"y", theme:"dark-3", scrollButtons:{ enable: true }, live:"on", advanced:{ updateOnContentResize: true, updateOnSelectorChange:true }, documentTouchScroll: false });


  21. Sofia
    Posted on January 16, 2017 at 15:08 Permalink

    Hi! Inside my scroll there is ul. How shoud I put the element (by clicking it) in the center of scroll?

    • Parkash Kumar
      Posted on March 2, 2017 at 14:46 Permalink

      This is exactly, what I need! In other words, it is said to be center locked horizontal scroll.

  22. Andrew
    Posted on January 16, 2017 at 15:02 Permalink

    Hi! Can I center scroll element, on click them?

  23. James
    Posted on January 10, 2017 at 20:56 Permalink

    Hi there – is it possible to offset the top position of the scrollbar within the function rather than modifying the CSS file?

  24. MJB
    Posted on December 18, 2016 at 05:28 Permalink

    Is it possible to dynamically update the snapAmount/scrollAmount value based on an elements updated width/height if the browser is resized.


    var amount = Math.max.apply(Math,$(“#content-1 li”).map(function(){return $(this).outerHeight(true);}).get());

    How do you pass the updated value to the scrollbar on resize?

  25. Diwakar Singh
    Posted on December 14, 2016 at 12:12 Permalink


    I am trying to implement this scrollbar on a textarea. Does this plugin work on a textarea component.

    Diwakar Singh

  26. Guy
    Posted on December 8, 2016 at 18:08 Permalink

    Question; I’ve the scroll bar on a window which has multiple custom select options and I want to deactivate just the mouse wheel when I hover.

    Now it’s plain to get to the exact event but I am not sure about the syntax required to do just that.
    $(‘.widgetSettingContent’).mCustomScrollbar(mouseWheel:{ enable: ‘false’ });?

    I’m pretty sure I’m mistaken, I’d be happy if anyone was kind enough to correct me.

  27. Nicolas
    Posted on December 3, 2016 at 21:16 Permalink

    How would you approach this issue:
    I have a list of cards whose height is not fixed. Because they contain flex elements, when their width is reduced, their height also decreases.
    When using your scrollbar against this list, this produces a weird flickering issue when dynamically resizing the height list. At first the scrollbar is not visible. Then, at some point, the scrollbar needs to be displayed. When it appears, the width of the list decreases by the width of the scrollbar. This makes all the cards also reduce their height, which, you guess, makes the scrollbar non needed. So it disappears. So the cards expand, and so on, and so on, until I reduce the height of the list enough so that the scrollbar is always needed.
    How would you fix that? Thanks.

  28. Josh
    Posted on December 2, 2016 at 13:18 Permalink

    The scroll to works great, but it’s often annoying to “scroll into view” when the element is already in view. It would be great to be able to check whether an element within the mCustomScrollbar is visible before calling scrollTo. This could be done either with a .visible method like this (which method might have other useful use cases) or more specifically, passing an option to scrollTo like “onlyIfNotVisible”: true

  29. Josh
    Posted on November 28, 2016 at 20:56 Permalink

    When I hide the scrollbar using CSS display: none; on a parent element and then remove that CSS, the scroll bar forgets the position it was scrolled to and resets itself back to the top. Is there anyway to maintain the scroll position between hide/shows?

  30. Kumar Gaurav
    Posted on November 28, 2016 at 10:13 Permalink

    We are using malihu custom scrollbar and facing an issue.
    If we click on the Dragger Rail of the custom scrollbar,then the container goes to top:position -2000 or something like that.And the content is invisible. However it works fine on dragging the srcollbar. On clicking the dragger rail, the behaviour is somewhat weird as at times the content disappears due to wrong calculation of the top position.Can you please suggest a solution? The content and the container is created dynamically everytime so we are destroying and re-creating custom scrollbar and passing the height of container everytime.

    Steps to Reproduce:
    We are using malihu custom scrollbar on interactive map. Just click on the map icon on top left corner and a google map will open .If you select one of the office locations i.e map pins, a right hand side panel will open.
    In the right hand panel,if we click in the right hand area
    (around the scroll bar, but not on the scroll bar i.e dragger rail),it makes the office text/details disappear. It reappears if you scroll up/down. Just try clicking randomly around this area.


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