diff --git a/userChrome.css b/css/leptonChrome.css
similarity index 100%
rename from userChrome.css
rename to css/leptonChrome.css
diff --git a/userContent.css b/css/leptonContent.css
similarity index 100%
rename from userContent.css
rename to css/leptonContent.css
diff --git a/docs/Project_Structure.md b/docs/Project_Structure.md
index 355a43e..3763558 100644
--- a/docs/Project_Structure.md
+++ b/docs/Project_Structure.md
@@ -90,12 +90,6 @@ CSS settings are relatively simple.
 - `userChrome-overrides.css` at `<Firefox_Profile>/chrome/`
 - `userContent-overrides.css` at `<Firefox_Profile>/chrome/`
 
-Then, activate the following options:
-- `userChrome.overrides` to `true`
-- `userContent.overrides` to `true`
-
-It is now loading, and there is no need to manage the version control to the `userChrome.css` and `userContents.css` file.
-
 `user-overrides.js` needs to use a shell script and has some priorities.
 - `<Firefox_Profile>/user-overrides.js`
 - `./user-overrides.js` (Will be copied `<Firefox_Profile>/chrome/`)
diff --git a/package.json b/package.json
index 7279baa..1b53499 100644
--- a/package.json
+++ b/package.json
@@ -14,10 +14,10 @@
   },
   "homepage": "https://github.com/black7375/Firefox-UI-Fix#readme",
   "scripts": {
-    "build": "sass --no-source-map src/userChrome.scss ./userChrome.css && sass --no-source-map src/userContent.scss ./userContent.css && prettier --write userChrome.css userContent.css",
+    "build": "sass --no-source-map src/leptonChrome.scss css/leptonChrome.css && sass --no-source-map src/leptonContent.scss css/leptonContent.css && prettier --write css/leptonChrome.css css/leptonContent.css",
     "format": "prettier --write .",
     "test": "jest",
-    "validate": "csstree-validator userChrome.css; csstree-validator userContent.css"
+    "validate": "csstree-validator css/leptonChrome.css; csstree-validator css/leptonContent.css"
   },
   "devDependencies": {
     "csstree-validator": "^3.0.0",
diff --git a/src/userChrome.scss b/src/leptonChrome.scss
similarity index 100%
rename from src/userChrome.scss
rename to src/leptonChrome.scss
diff --git a/src/userContent.scss b/src/leptonContent.scss
similarity index 100%
rename from src/userContent.scss
rename to src/leptonContent.scss
diff --git a/waterfox.sh b/waterfox.sh
index cad57a6..071178e 100755
--- a/waterfox.sh
+++ b/waterfox.sh
@@ -7,5 +7,5 @@ replace_icon_path() {
   file=$1
   sed -i "s/\.\/icons\//chrome:\/\/browser\/skin\/lepton\//g" "${file}"
 }
-replace_icon_path userChrome.css
-replace_icon_path userContent.css
+replace_icon_path css/leptonChrome.css
+replace_icon_path css/leptonContent.css