diff --git a/.editorconfig b/.editorconfig
index 1ed453a3..6916bbcb 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -4,7 +4,7 @@ root = true
 end_of_line = lf
 insert_final_newline = true
 
-[*.{js,json,yml}]
+[*.{tsx,ts,js,json,yml}]
 charset = utf-8
 indent_style = space
 indent_size = 2
diff --git a/package.json b/package.json
index 502e207e..6bbd50e7 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
     "@types/node": "^18.16.1",
     "@types/react": "^18.2.0",
     "@types/react-dom": "^18.2.1",
+    "classnames": "^2.3.2",
     "gh-pages": "^5.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
diff --git a/yarn.lock b/yarn.lock
index 7ed630d2..e792ceb5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4378,6 +4378,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"classnames@npm:^2.3.2":
+  version: 2.3.2
+  resolution: "classnames@npm:2.3.2"
+  checksum: 2c62199789618d95545c872787137262e741f9db13328e216b093eea91c85ef2bfb152c1f9e63027204e2559a006a92eb74147d46c800a9f96297ae1d9f96f4e
+  languageName: node
+  linkType: hard
+
 "clean-css@npm:^5.2.2":
   version: 5.3.2
   resolution: "clean-css@npm:5.3.2"
@@ -10789,6 +10796,7 @@ __metadata:
     "@types/node": ^18.16.1
     "@types/react": ^18.2.0
     "@types/react-dom": ^18.2.1
+    classnames: ^2.3.2
     gh-pages: ^5.0.0
     react: ^18.2.0
     react-dom: ^18.2.0