Makes the Wikipedia Table of Contents (TOC) float at a fixed position and not scroll with the rest of the page. The position can be customized with the "left:" and "top:" parameters (which define in pixels the distance to the left and top border, respectively). Works for any Mediawiki-powered wiki page.
Per
// ==UserScript==
// @name Floating Table of Contents
// @version 1.1
// @namespace http://userscripts.org/scripts/show/122189
// @description Makes the Wikipedia Table of Contents (TOC) float at a fixed position and not scroll with the rest of the page. The position can be customized with the "left:" and "top:" parameters (which define in pixels the distance to the left and top border, respectively). Works for any Mediawiki-powered wiki page.
// @include http://*.wikipedia.org/*
// @include https://*.wikipedia.org/*
// @include http://rationalwiki.org/*
// ==/UserScript==
var styleEl = document.createElement('style');
styleEl.type = 'text/css';
styleEl.innerHTML = 'td.mbox-image { display: none;} div.toc { position: fixed; top: 160px; left: 160px; border: 0px; width: 220px; border-bottom: 1px SOLID #CCC; border-left: 1px SOLID #CCC;} div.toc ul {overflow: auto; max-height: 500px;} body {overflow-x: hidden;}';
document.documentElement.appendChild(styleEl);