hide scrollbar if not scrolling - html

Question

I would like to hide the scrollbar if the the user is not scrolling, meaning if the user scrolls, the scrollbar should appear (only the scrollbar not the scroll track), while if the user does not scroll it should disappear. I sort of had that setup for a long time, but than I made some changes to my page and now the page always shows the scrollbar (if there is more content than one page can cover). Unfortunately I don't know what I did to make this feature go away? I played around with overflow in the css, but overflow: hidden just removes all scrolling possibilities. Here is a fiddle which shows my current setup
https://jsfiddle.net/jsmnsLm7/ (please make the window big, so that you can see all of the features of my navbar setup)
as you can see I use
overflow: hidden
in the body and
overflow: scroll
in the main.
thanks for your help
carl

Answer 1

try following css:
overflow:auto;
It worked for me :)

Answer 2

This will do what you're looking for
http://rocha.la/jQuery-slimScroll
Or you could just show the scrollbar when you hover over the area using CSS only;
This worked for me;
<style>
#ID {
overflow-y: hidden;
}
</style>
#ID:hover, #ID:active, #ID:focus {
overflow-y: auto;
}
</style>
<div class="ID"></div>

Answer 3

There isn't a way to do this outside of a scripting languege as far as I know, but the JavaScript you use for this is super simple.
Start off with a CSS style of:
#ID {
overflow: hidden
}
Then in your div in the HTML use this command
<div id="ID" onmouseover="this.style.overflow='scroll'"
onmouseout="this.style.overflow='hidden'"
this will cause your scroll button to appear when the user hovers over the div, but then disappear again when the user hovers away from the div.

Answer 4

If you are using bootstrap, it is pretty simple - There is a default Scroll class to which you can apply the style overflow: auto.
<div class="Scroll" style="overflow: auto" >
.......
</div>

Answer 5

Based on this https://stackoverflow.com/a/40857678/15992537 answer I made this:
.categorias::-webkit-scrollbar-thumb {
height: 6px;
background: #ff3d1d;
border-radius: 10px;
visibility: hidden;
}
.categorias:active::-webkit-scrollbar-thumb {
visibility: visible;
}
this worked in my case because my div is draggable, so the thumb shows when i drag and move it, but with JS you probably can make it apear based on events like page scroll for example.

Answer 6

use overflow: auto
The overflow property has the following values:
visible - Default. The overflow is not clipped. The content renders outside the element's box
hidden - The overflow is clipped, and the rest of the content will be invisible
scroll - The overflow is clipped, and a scrollbar is added to see the rest of the content
auto - Similar to scroll, but it adds scrollbars only when necessary