html change color of mobile scrollbar code example

Example 1: change scrollbar color

.scrollable-element {
  scrollbar-color: red yellow; /* red is for the thumb and yellow is for the track */
}

Example 2: scrollbar with 2 different colors on same page css

::-webkit-scrollbar-track {
    background-color: #333;
}

/* Override styles for <div>s, for example */
div::-webkit-scrollbar-track {
    background-color: #b13131;
}