reddit_large_hide_button.user.js

// ==UserScript==
// @name          Reddit Hide Button
// @namespace     http://www.reddit.com
// @description	  Inserts button in place of Hide command
// @include       http://*.reddit.com/*
// ==/UserScript==

GM_addStyle('div.entry { position: relative; }');

// position in top right corner
GM_addStyle('form[class="state-button hide-button"] { position: absolute; right: 10px; top: 5px; }');

// button style
GM_addStyle('form[class="state-button hide-button"] a {font-size: 1.25em !important; background-color: #6699CC !important; color: white !important; -moz-border-radius: 4px !important; -webkit-border-radius: 4px !important; padding: 5px 5px !important; height: 25px; }');