Webkit custom scrollbar iOs style

I wanted to reproduce the look and feel of the ios scrollbar, so I played with the
::-webkit-scrollbar property.

Check out the demo, here

Here the code:

::-webkit-scrollbar {
width: 10px;
height: 10px;
::-webkit-scrollbar-button:end:increment {
height: 30px;
display: block;
background-color: transparent;
::-webkit-scrollbar-track-piece {
background-color: #E9E9E9;
-webkit-border-radius: 6px;
::-webkit-scrollbar-thumb:vertical {
height: 50px;
background-color: #999;
border: 1px solid #eee;
-webkit-border-radius: 6px;