Result screenshot:
Very simple css:
body { scrollbar-3dlight-color: #eaeaea; /* LightGray */ scrollbar-arrow-color: #cfcfcf; /* Gray */ scrollbar-darkshadow-color: #eaeaea; /* LightGray */ scrollbar-face-color: #cfcfcf; /* Gray */ scrollbar-highlight-color: #cfcfcf; /* Gray */ scrollbar-shadow-color: #cfcfcf; /* Gray */ scrollbar-track-color: #eaeaea; /* LightGray */ }