JSFiddle - React, Tailwind, and code Playground

JavaScript

function createFragment(htmlStr) {
    var frag = document.createDocumentFragment(),
        temp = document.createElement('div');
    temp.innerHTML = htmlStr;
    while (temp.firstChild) {
        frag.appendChild(temp.firstChild);
    }
    while (temp.firstChild) {
        frag.appendChild(temp.firstChild);
    }
    return frag;
}

// You can use native DOM methods to insert the fragment:
document.body.appendChild(createFragment('<div>Hello!</div><p>...fdsfdsafdsafdsaf</p>'));