From 6801542f066d76f6deb86dd92d23e72c7b90793b Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Thu, 9 Sep 2021 21:46:00 +0200
Subject: README: Add documentation for domain wildcards

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 5d206d8..c79d47f 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,16 @@ Stylesheets must use a filename matching the website’s domain (including
 subdomains), and terminated by a `.css` extension.
 
 
+### Domain wildcards
+Styles can be applied to multiple domains or subdomains using domain-level
+wildcards. For the host `www.example.com`, the following CSS files will apply:
+
+* `%.css`: Applies styles to all hosts
+* `%.com.css`: Applies styles to all `.com` domains
+* `%.example.com.css`: Applies styles to all subdomains under `example.com`
+* `www.example.com.css`: Applies styles to the `www.example.com` host
+
+
 ## Install
 This extension should be installed unpacked to allow you to freely add and
 modify stylesheets in the `css/` directory.
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