Always use the default monospace font in the codemirror editor.
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// ==UserScript== // @name LeetCode-Default-Font // @namespace leetcode-default-font // @version 0.2 // @description Always use the default monospace font in the codemirror editor. // @author [email protected] // @include *://leetcode.com/* // ==/UserScript== (function() { 'use strict'; function addGlobalStyle(css) { var head, style; head = document.getElementsByTagName('head')[0]; if (!head) { return; } style = document.createElement('style'); style.type = 'text/css'; style.innerHTML = css; head.appendChild(style); } addGlobalStyle('.CodeMirror { font-family: monospace !important; }'); })();