docbase-fixed-title.js

// ==UserScript==
// @name         DocBase Fixed Title
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Fix the title at the top of the page on DocBase articles
// @author       asonas
// @match        https://*.docbase.io/*
// @grant        none
// ==/UserScript==

(function() {
  'use strict';

  var delay = 1000;
  var maxRetries = 10;
  var retryCount = 0;

  function retry() {
    setTimeout(function() {
      var headerElement = document.querySelector('.memo_header__Root-sc-nopch2-0.GKAny');
      var parentDivElement = headerElement ? headerElement.parentElement : null;

      if (parentDivElement) {
        parentDivElement.style.position = 'sticky';
        parentDivElement.style.top = '0';
        parentDivElement.style.backgroundColor = '#fff';
        parentDivElement.style.zIndex = '1000';
      } else {
        retryCount++;
        if (retryCount < maxRetries) {
          retry();
        }
      }
    }, delay);
  }

  retry();
})();