Change size of scrollbar thumb with CSS

Question

I want to get a scrollbar with a thumb larger than the track. I can change the color, the opacity, everything, but I don\'t know how to change the size of the thumbs and the

Answer 1

::-webkit-scrollbar {
    width: 16px;
    height: 100%;
}

::-webkit-scrollbar-thumb:vertical {
    height: 100px;
}