다음과 같이 커스텀하게 스크롤바를 만들어야 하는
::-webkit-scrollbar the scrollbar.::-webkit-scrollbar-button the buttons on the scrollbar (arrows pointing upwards and downwards).::-webkit-scrollbar-thumb the draggable scrolling handle.::-webkit-scrollbar-track the track (progress bar) of the scrollbar.::-webkit-scrollbar-track-piece the track (progress bar) NOT covered by the handle.::-webkit-scrollbar-corner the bottom corner of the scrollbar, where both horizontal and vertical scrollbars meet.::-webkit-resizer the draggable resizing handle that appears at the bottom corner of some elements.