How can I change the scroll bar color

Use Style Sheet to change the color of scroll-bar

body 
{
    FONT-SIZE: 8pt;
    COLOR: #000000;
    background-color: #EEEEEE; 
    scrollbar-face-color: #EEEE99;
    scrollbar-highlight-color: #DDDDDD;
    scrollbar-shadow-color: #DEE3E7;
    scrollbar-3dlight-color: #FF6600;
    scrollbar-arrow-color:  #006699;
    scrollbar-track-color: #EFEFEF;
    scrollbar-darkshadow-color: #98AAB1;
}