Site Specific CSS
Note: Sorry about the bad header problem. Version 1.0.1 should work much better.
Consider an alternative
Site Specific CSS shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 16 years ago, and scores 23/100 on our health check.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 15 years
- Only tested up to WordPress 3.0 (latest is 7.1)
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Site Specific CSS stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| child of child theme | >100 |
| child theme | >100 |
| css | >100 |
| site specific | >100 |
| skin | >100 |
Version adoption
Share of active sites per release.
About Site Specific CSS
From the official readme · v1.0.1Description
Note: Sorry about the bad header problem. Version 1.0.1 should work much better.
If you want a different CSS file (also known as a skin) for the different sites you are working on in WordPress Multi-Site you have to make a child theme (best practice) or copy a theme and change its name, css, and whatever else you may desire to change (less than optimal solution).
But wait! There is a better solution!
You can add site specific CSS to each blog individually, instead of changing your theme or using a million child themes.
Got comments? Wanna share this with all your multi-site friends? Cool! We do too!
Installation
Here are three different ways you can install this plug-in:
- Use the handy install option built into wordpress.
- or… Download the zip file, un-zip, and upload to the plug-ins directory.
- or… Copy the contents of site-specific-css.php to the functions.php of your favorite child theme.
Then if you installed as a plug-in (options 1 or 2 above), activate the plugin.
Next make sure you can upload a css file.
1. Goto the Super Admin menu
1. Select options, and near the bottom find a list of all acceptable file extensions.
1. Make sure css is on the list.
Now to use it.
- Upload the css file you’d like to apply to your site using the media upload (recommended) or ftp.
- After you upload, copy the location of the file.
- Make sure you have the correct site and child theme active, then look under appearance. There will be a new menu item for Site Specific CSS.
- Paste the URL of the CSS file into the only (for now) option box, then save changes.
- Enjoy your new look.
Changelog
1.0 First public release.
1.0.1 Header corrected so it will install.
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
FAQ
Site Specific CSS: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 28, 2026
Is Site Specific CSS free?
Yes. Site Specific CSS is free to download and use from the official WordPress.org plugin directory.
Is Site Specific CSS safe to use in 2026?
Site Specific CSS shows warning signs in 2026 — compare the alternatives below before installing. It runs on 10+ sites and was last updated 16 years ago, and scores 23/100 on our health check.
How many websites use Site Specific CSS?
Site Specific CSS is active on 10+ WordPress websites and has been downloaded 4,918 times since it launched in November 2010. It was downloaded 70 times in the last 30 days.
Does Site Specific CSS work with WordPress 7.1?
Site Specific CSS is officially tested up to WordPress 3.0.5, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Site Specific CSS last updated?
The latest version, 1.0.1, was released on November 22, 2010 (16 years ago).
Who makes Site Specific CSS?
Site Specific CSS is developed and maintained by Luke Gedeon.
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