title: How can a Tampermonkey userscript disable a single setting of a site's CSS?
body: <p>I've modified a script I found online to get the formatting I like, but the CSS in Gmail is messing up how it is displayed.</p>
  
  <p>Using Chrome I discovered that I can toggle <code>max-width</code> and it corrects to display, but I'm not smart enough to find out how to input that into this script.</p>
  
  <p>How can I have the script disable <code>max-width</code> for the <code>.xW</code> class?</p>
  
  <p><a href="https://i.stack.imgur.com/s8Db3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/s8Db3.png" alt="Gmail"></a></p>
  
  <p><a href="https://i.stack.imgur.com/fmjxc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fmjxc.png" alt="Gmailwith max-width disabled on CSS"></a></p>
  
  <p><a href="https://greasyfork.org/en/scripts/372528-gmail-show-formatted-full-date-and-time-in-mail-list" rel="nofollow noreferrer">Original Script Source</a></p>
  
  <p>My modified script:</p>
  
  <pre><code>// ==UserScript==
  // @name        Gmail - show FORMATTED full date and time in mail list
  // @description Just show the full date and time on the list instead of only short date. Useful if you need to create a report and you base on your activity and it's timing. Or when you look at mails and want to find one visually by looking on times.
  // @include     https://mail.google.com/mail/*
  // @version 0.0.1.20180924133221
  // @namespace https://greasyfork.org/users/153157
  // ==/UserScript==
  
  var formatDate = function(dateString) {
    var dateTime = new Date(dateString);
    return dateTime.toLocaleString();
  };
  
  (function() {
    window.setInterval(function() {
      var date_titles_main = Array.from(document.getElementsByClassName("xW xY"));
      var date_titles_thread = Array.from(document.getElementsByClassName("g3"));
      date_titles_main.forEach(function(element, index, array) {
        var elements = element.childNodes;
        var title = elements.length &gt; 0 ? elements[0].title : false;
        if (title) {
          title = formatDate(title);
        }
        if (title &amp;&amp; elements[0].innerHTML != title) { elements[0].innerHTML = title; }
      });
      date_titles_thread.forEach(function(element, index, array) {
        if (element.title &amp;&amp; element.innerHTML != element.title) { element.innerHTML = formatDate(element.title); }
      });
      Array.from(document.getElementsByClassName("xX")).forEach(function(element, index, array) {
        element.style.width = '80ex';
      });
    }, 2000);
  })();
  </code></pre>