Zampa / Gain App Custom Styling

// ==UserScript==
// @name         Gain App Custom Styling
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://manage.gainapp.com/*
// @grant        none
// ==/UserScript==
/* jshint -W097 */
'use strict';

// Your code here...
function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}

addGlobalStyle('body { font-weight: 400 !important; }');
addGlobalStyle('.social-post-preview.table-cell .post-content .post-content-inner { font-weight: 400 !important; font-size: 14px !important; line-height: 1.4em !important; }');
addGlobalStyle('.social-post-preview.monthly-cal .post-content .post-content-inner { font-weight: 400 !important; font-size: 12px !important; line-height: 1.4em !important; }');
addGlobalStyle('.date { font-weight: 400 !important; font-size: 14px !important; line-height: 1.4em !important; }');
addGlobalStyle('.action span.text { color: #fff !important; }');
addGlobalStyle('.social-post-preview.monthly-cal .post-time { font-size: 11px !important; }');