JSFiddle - React, Tailwind, and code Playground

by Gatsu35

CSS

pre {line-height:.8em;}

JavaScript

var s = new Array(11).join('*').replace(/./g,function(a,b,c) {
    return new Array(b+1).join(' ')+new Array(c.length-b+1).join(a)+'\n';
});
document.write('<pre>'+s+'</pre>');