::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3); border-radius: 10px; }
::-webkit-scrollbar-thumb { border-radius: 10px; -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.5); }
kaynak:https://css-tricks.com/custom-scrollbars-in-webkit/
