JSFiddle - React, Tailwind, and code Playground
HTML
<section id="code"></section>
JavaScript
var thecode = "",
number = 18,
i = 1,
open = "<div>", //Apertura de etiqueta
close = "</div><br />"; //Cierre de etiqueta (con salto de línea)
while (i <= number){
thecode += open + i + close;
i++;
}
$('#code').html(thecode);