#centeredcontent::-webkit-scrollbar {
    width: 7px;
}

/* Track */
::-webkit-scrollbar-track {
    background: #fff; 
}
 
/* Handle */
::-webkit-scrollbar-thumb {
    background: #ddd; 
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555; 
}