JSFiddle - React, Tailwind, and code Playground

JavaScript

$(function() {
    var myStuff = createBlock("test2");
    $("body").append(createBlock("test1"));
    $("body").append(myStuff);                         
    function createBlock(myHTML) {
        return $("<div/>").attr("class", "box").append($("<span/>").html(myHTML));
    }
});