This interactive demo was created free with Storylane in 2 minutes. Create your own demo
This interactive demo was created free with Storylane in 2 minutes. Create your own demo
Start free
All Tutorials /Joomla

How to Edit CSS in Joomla

Updated on:
May 13, 2026
By:
Madhav Bhandari
Use this interactive demo to learn how to customize CSS files inside your Joomla template.

Quick summary

This demo walks you through how to edit CSS in Joomla using the built-in Template Manager. You can directly modify stylesheet files like editor.css inside the Cassiopeia template to control your site's visual presentation without any external tools.


Steps

  1. Access the core configuration area through the System menu to manage your site settings.
  2. Navigate to Site Templates to customize the visual appearance of your Joomla website.
  3. Open the Cassiopeia template — Joomla's modern, responsive default theme — to begin customizing its appearance.
  4. Access the CSS directory where style files control your template's visual presentation.
  5. Open editor.css, the stylesheet that controls the styling of content editing interfaces.
  6. Examine the h1 heading style definition to customize your site's typography.
  7. Click Save & Close to preserve your template customizations and instantly update your site's appearance.

📌 Why this matters

Editing CSS directly in Joomla's Template Manager gives site owners and developers full control over their website's visual design without needing FTP access or external code editors. The built-in file editor for templates like Cassiopeia allows you to modify stylesheets such as editor.css in real time, making it easy to customize typography, layout, and UI elements. This approach is ideal for anyone looking to tailor a Joomla site's appearance quickly and efficiently from within the administrator dashboard.
Your product deserves an interactive demo
Start free
Similar Articles
Joomla

How to Remove Powered by Joomla

Madhav Bhandari
Director of Marketing @ Storylane
Joomla

How to Remove Cassiopeia from Joomla

Madhav Bhandari
Director of Marketing @ Storylane
Joomla

How to Log Into a Joomla Site

Madhav Bhandari
Director of Marketing @ Storylane
No items found.
Platform
Interactive Demos
Sandbox Demos
Buyer Hub
RepX
Integrations
Solutions
Product Marketers
Growth & Demand Gen
Sales Reps & AEs
Presales & SEs
Customer Success
Product Managers
Customers
Demo Showcase
Customer Stories
Finer Demos Club
Features
Demo Signals
Personalization
Deal Intelligence
Resources
Blog
The Plot
Tutorials
Help Docs
What’s New
Demo Dundies
Company
Careers
Pricing
Partners
Contact
Trust Center
Backed by
Chrome Extension Icon
Chrome extension
Download
Desktop app
Download
Built in San Francisco Bay Area - ©2026 Storylane
Privacy PolicyTerms & Conditions
X Corp (formerly Twitter)LinkedIn
This website uses cookies to ensure you get the best experience on our website. Learn More
Got it
This website uses cookies to ensure you get the best experience on our website. Learn More
Got it