remove opponent's field grid
// ==UserScript==
// @name Opponent's Field Grid Script
// @namespace http://tampermonkey.net/
// @version 0.1
// @description remove opponent's field grid
// @author Oki
// @match https://*.jstris.jezevec10.com/*
// @grant none
// ==/UserScript==
/**************************
Opponent's Field Grid Script
**************************/
var customStyle=document.createElement("style");
customStyle.innerHTML='.players .bgLayer{display:none;}';
document.body.appendChild(customStyle);