Recyclex / GBF Fixed Header Menu

// ==UserScript==
// @name         GBF Fixed Header Menu
// @version      20190412.1
// @description  Locks header menu in place.
// @match        *://game.granbluefantasy.jp/*
// @match        *://gbf.game.mbga.jp/*
// @downloadURL  https://openuserjs.org/src/scripts/Recyclex/GBF_Fixed_Header_Menu.user.js
// @updateURL    https://openuserjs.org/src/scripts/Recyclex/GBF_Fixed_Header_Menu.user.js
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';
    var link = window.document.createElement('link');
    link.rel = 'stylesheet';
    link.type = 'text/css';
    link.href = 'data:text/css,' +
    // Selectors start here
        '.cnt-global-header {position: fixed !important;}' +
        '.pop-global-menu {position: fixed !important;}' +
        '.contents {display: contents !important;}'
    document.getElementsByTagName("HEAD")[0].appendChild(link);
})();