How to change Chrome/FF main slider?

[cochize1 40]

Is there any easy way to mange the size and opacity/color of the main slider in the web browser using custom css?

 

Edited October 26, 2019 by cochize1

[Happy2Play 8249]

Something like this

/*Scrollbar width*/
html ::-webkit-scrollbar {
    width: .5em;
}

/*Scrollbar Opacity*/
html ::-webkit-scrollbar-track-piece {
    background-color: rgba(0,0,0,.2);
}

You can try to target the color in the opacity above also, as the color is the html layer that will affect other areas.

[cochize1 40]

Thank you, worked perfectly. Not sure if I should start another topic but I have still one small problem:

 

Is there a way to disable "highlight" option so would avoid this:

[Happy2Play 8249]

That would be "::selection".  Accidental selection of items on the page.  Clicking anywhere should resolve it but I guess you can assign a different background color if you like.

 

If you apply color it affects the selected text color.  And background will affect the selected texts background.  You can use one or both if you like.

::selection, ::-moz-selection {
  color: assign a color;
  background: assign a color;
}

[cochize1 40]

Does "-moz" means it is for Mozzila only? As I am using chrome and did not notice any change (still blue default selection).

[Happy2Play 8249]

Does "-moz" means it is for Mozzila only? As I am using chrome and did not notice any change (still blue default selection).

Yes -moz is specific to FireFox.  What color did you apply as I have no issue adding color and background in Chrome when I apply my choice of colors.