css滚动条颜色参数设置
scrollbar-3d-light-color 设置或检索滚动条亮边框颜色
scrollbar-highlight-color 设置或检索滚动条3D界面的亮边（ThreedHighlight）颜色
scrollbar-face-color 设置或检索滚动条3D表面（ThreedFace）的颜色
scrollbar-arrow-color 设置或检索滚动条方向箭头的颜色
scrollbar-shadow-color 设置或检索滚动条3D界面的暗边（ThreedShadow）颜色
scrollbar-dark-shadow-color 设置或检索滚动条暗边框（ThreedDarkShadow）颜色
scrollbar-base-color 设置或检索滚动条基准颜色
scrollbar-highlight-color 设置或检索滚动条3D界面的亮边（ThreedHighlight）颜色
scrollbar-face-color 设置或检索滚动条3D表面（ThreedFace）的颜色
scrollbar-arrow-color 设置或检索滚动条方向箭头的颜色
scrollbar-shadow-color 设置或检索滚动条3D界面的暗边（ThreedShadow）颜色
scrollbar-dark-shadow-color 设置或检索滚动条暗边框（ThreedDarkShadow）颜色
scrollbar-base-color 设置或检索滚动条基准颜色
