change css of overflow bar code example

Example 1: customize scrollbar css

// scroll bar
/* width */
::-webkit-scrollbar {
  background-color: hsl(235, 24%, 19%);
  width: 8px;
}

/* Track */
::-webkit-scrollbar-track {
  background-color: hsla(235, 21%, 11%, 0.322);
  box-shadow: 0 0 3px hsl(235, 21%, 11%);
  border-radius: 10px;
}

/* Handle */
::-webkit-scrollbar-thumb {
  background-color: hsl(235, 21%, 11%);
  border-radius: 10px;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: hsl(220, 98%, 61%);
}

Example 2: css beutify scroller

body::-webkit-scrollbar {
  width: 1em;
}
 
body::-webkit-scrollbar-track {
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
}
 
body::-webkit-scrollbar-thumb {
  background-color: darkgrey;
  outline: 1px solid slategrey;
}