remove background image.
// ==UserScript==
// @name v2ex-removebg
// @namespace http://tampermonkey.net/
// @version 0.1
// @description remove background image.
// @author 6david9
// @match https://*.v2ex.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=v2ex.com
// @grant none
// @run-at document-idle
// @license MIT
// ==/UserScript==
(function() {
'use strict';
/* globals jQuery, $, waitForKeyElements */
const elem = document.querySelector("#Wrapper");
elem.style.backgroundColor = "#dee";
elem.style.backgroundRepeat = "no-repeat";
elem.style.backgroundImage = 'none';
$("#Rightbar > div:nth-child(3)").css({"display": "none"});
$("#Rightbar > div:nth-child(4)").css({"display": "none"});
$(".wwads-cn").css({"display": "none"});
})();