JSFiddle - React, Tailwind, and code Playground

CSS

body{
    height: 100%;
    background:
        -moz-radial-gradient(black 15%, transparent 26%) 0 0,
        -moz-radial-gradient(black 15%, transparent 26%) 4px 4px;
        background:
        -webkit-radial-gradient(black 15%, transparent 26%) 0 0,
        -webkit-radial-gradient(black 15%, transparent 26%) 4px 4px;
        background:
        radial-gradient(black 15%, transparent 26%) 0 0,
        radial-gradient(black 15%, transparent 26%) 4px 4px;
        -moz-background-size: 8px 8px;
        background-size:8px 8px;
        background-color: rgba(0,0,0,.9);
}