https://www.arthaey.com/bin/style800x600.js

1/* removed table of contents and left margins if we're on a small screen */
2addEvent(window, 'load', function() {
3   // don't do resizing on iPhones etc
4   if ((navigator.userAgent.match(/iPhone/i)) ||
5       (navigator.userAgent.match(/iPod/i)))
6   {
7      return;
8   }
9   if (window.innerWidth < 1000) {
10      document.getElementById('TOC').style.display = 'none !important';
11      document.getElementById('mainClm').style.marginLeft = '1em !important';
12      document.getElementById('navbar').style.marginLeft = '1em !important';
13   }
14});