Custom scrollbar can be done with css. Here are the scrollbar styles of this page.
html {
/* puts scrollbar on top of content, prevents container moving left when scrollbar pops up */}
overflow: overlay;
&::-webkit-scrollbar {
width: 5px;
height: 5px;
}
&::-webkit-scrollbar-thumb {
background: rgb(0 0 0 / 12%);
border-radius: 5px;
box-shadow: inset 0 0 6px rgb(0 0 0 / 10%);
&:hover {
background: rgb(0 0 0 / 20%);
}
}
&::-webkit-scrollbar-track {
background: rgb(0 0 0 / 5%);
}
}