Adds a large smiley face to the upper right corner of every page

Smiley Face Inserter.user.js

// ==UserScript==
// @name         Smiley Face Inserter
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Adds a large smiley face to the upper right corner of every page
// @author       Your Name
// @match        *://*/*
// @grant        none
// @require      https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js
// ==/UserScript==

(function() {
    'use strict';

    const smileyFace = "😀";

    const smileyStyle = `
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 48px;
        z-index: 10000;
    `;

    let smileyElement = $('<div>').text(smileyFace).attr('style', smileyStyle);
    $('body').append(smileyElement);

})();