A lightweight UserScript that removes narrow layout; expands GitHub Markdown (*.md) files to full‑width for easier reading and better use of screen space.
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// ==UserScript==
// @name GitHub Wide Markdown
// @namespace https://greasyfork.org/users/1002054-igorskyflyer
// @version v1.0.1
// @description A lightweight UserScript that removes narrow layout; expands GitHub Markdown (*.md) files to full‑width for easier reading and better use of screen space.
// @author igorskyflyer
// @date 2025-09-22
// @match https://github.com/*.md
// @icon https://www.google.com/s2/favicons?sz=64&domain=github.com
// @run-at document-end
// @grant none
// @license GPL-3.0-or-later
// @compatible chrome
// @compatible firefox
// @compatible opera
// @compatible safari
// @compatible edge
// @homepageURL https://github.com/igorskyflyer/userscript-github-wide-markdown
// @supportURL https://greasyfork.org/scripts/550390/feedback
// ==/UserScript==
// @ts-nocheck
;(() => {
const widen = () => {
const el = document.querySelector('article.markdown-body')
if (!el) {
return
}
el.style.setProperty('max-width', '100%', 'important')
el.style.setProperty('margin-left', '0', 'important')
el.style.setProperty('margin-right', '0', 'important')
}
widen()
new MutationObserver(widen).observe(document.body, {
childList: true,
subtree: true
})
})()