Скачать или смотреть scrollbar tricks = wide scrollbar-thumb

scrollbar tricks = wide scrollbar-thumb
::-webkit-scrollbar { /* whole scrollbar */ }
::-webkit-scrollbar-button { /* Scroll bar arrows Scroll left , right , top or bottom */ }
::-webkit-scrollbar-track { /* the track (progress bar) of the scrollbar */ }
::-webkit-scrollbar-track-piece { /* the part of the track (progress bar) not covered */ }
::-webkit-scrollbar-thumb { /* the draggable scrolling */ }
::-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 */ }