Tampermonkey show reddit downvote buttons

show_reddit_downvote_buttons.js

// ==UserScript==
// @name         Reddit Show Downvote Buttons
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  The front page of the internet
// @author       You
// @match        https://www.reddit.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    var items = document.querySelectorAll('.arrow[data-event-action="downvote"]')
    for (var i = 0; i < items.length; i++) {
       items[i].style.display = 'block'
    }
})();