JSFiddle - React, Tailwind, and code Playground

HTML

a
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b
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c
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d
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e

CSS

::selection {
	background: #333;
	color: #FFF;
}
::-webkit-scrollbar {
	width: 9px;
}
::-webkit-scrollbar-track {
	background:#eee;
	border: thin solid lightgray;
	box-shadow: 0px 0px 3px rgba(0, 0, 0, 0.1) inset;
}
::-webkit-scrollbar-thumb {
	background:#999;
	border: thin solid gray;
}