CSS code for displaying the scroll bar and controlling the attributes of the scroll bar in Div

 

 

CSS code for displaying the scroll bar in Div

Here is what you want to display

The effect is as follows:

CSS code for displaying the upper and lower scroll bars in Div

Here is what you want to display

Div only displays the upper and lower scroll bars
OVERFLOW-Y: Scroll; this part is key

CSS code for modifying the color of a div scroll bar

Here is what you want to display

Code for modifying the color of a scroll bar

SCROLLBAR-FACE-COLOR (color of the protruding part of the stereo scroll bar)
SCROLLBAR-HIGHLIGHT-COLOR (color of the blank part of the scroll bar)
SCROLLBAR-SHADOW-COLOR (color of stereo scroll bar shadow)
SCROLLBAR-ARROW-COLOR (color of the up and down arrow on the button)
SCROLLBAR-BASE-COLOR (Basic Color of the scroll bar)
SCROLLBAR-DARK-SHADOW-COLOR (color of strong shadow of a three-dimensional scroll bar)