JSFiddle - React, Tailwind, and code Playground

JavaScript

function b(a){c=document
if(a<250)
e=c.createElement('p')
f=e.style
f.background="rgb("+a+','+a+','+a+")"
f.height=d="9mm"
f.width=d
c.body.appendChild(e)
b(a+5)}b(0)