Greasy Fork is available in English.
try to take over the world!
// ==UserScript==
// @icon http://9.url.cn/edu/lego_modules/edu-ui/0.0.1/img/nohash/logo_pc_rich.png
// @name 腾讯课堂-清除水印-"xxx正在观看"
// @namespace http://tampermonkey.net/
// @version 0.3
// @description try to take over the world!
// @author Monster
// @match *://ke.qq.com/webcourse/*
// @run-at document-end
// ==/UserScript==
(function() {
'use strict';
// Your code here...
var count = 0;
var sbTx = setInterval(function(){
count++;
var txDd = document.querySelectorAll("[class^='player-inject']")
if(txDd.length || count > 300) {
txDd[0].style.opacity = 0;
txDd[0].style.position = 'absolute';
txDd[0].style.top = '-100000px';
clearInterval(sbTx)
}
},500)
})();