diff --git a/frontend/package.json b/frontend/package.json
index e73f201..1184681 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -23,12 +23,14 @@
     "styled-components": "^5.3.5"
   },
   "devDependencies": {
+    "@testing-library/dom": "^9.0.0",
     "@testing-library/jest-dom": "^5.16.5",
     "@testing-library/react": "12.1.5",
     "@testing-library/user-event": "^14.4.3",
     "axios-mock-adapter": "^1.21.2",
     "jest": "26.6.0",
     "jest-transform-css": "^6.0.0",
+    "postcss": "^8.4.21",
     "source-map-explorer": "^2.5.2"
   },
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 79a256d..d1c3f80 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2662,6 +2662,22 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@testing-library/dom@npm:^9.0.0":
+  version: 9.0.0
+  resolution: "@testing-library/dom@npm:9.0.0"
+  dependencies:
+    "@babel/code-frame": ^7.10.4
+    "@babel/runtime": ^7.12.5
+    "@types/aria-query": ^5.0.1
+    aria-query: ^5.0.0
+    chalk: ^4.1.0
+    dom-accessibility-api: ^0.5.9
+    lz-string: ^1.4.4
+    pretty-format: ^27.0.2
+  checksum: 5381bf9438f0ee35f795e7f9b203564aa455e7cd838b6677084c82dd56396779c38cc49ddffed4e57a8bcc3c62b4bc96ea684bb4b24d13655152db745327b2cd
+  languageName: node
+  linkType: hard
+
 "@testing-library/jest-dom@npm:^5.16.5":
   version: 5.16.5
   resolution: "@testing-library/jest-dom@npm:5.16.5"
@@ -8508,6 +8524,7 @@ __metadata:
     "@material-ui/core": ^4.12.4
     "@material-ui/icons": ^4.11.3
     "@material-ui/styles": ^4.11.5
+    "@testing-library/dom": ^9.0.0
     "@testing-library/jest-dom": ^5.16.5
     "@testing-library/react": 12.1.5
     "@testing-library/user-event": ^14.4.3
@@ -8521,6 +8538,7 @@ __metadata:
     jest: 26.6.0
     jest-transform-css: ^6.0.0
     lodash: ^4.17.21
+    postcss: ^8.4.21
     react: ^17.0.2
     react-data-table-component: ^6.11.8
     react-dom: ^17.0.2
@@ -14628,6 +14646,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.4.21":
+  version: 8.4.21
+  resolution: "postcss@npm:8.4.21"
+  dependencies:
+    nanoid: ^3.3.4
+    picocolors: ^1.0.0
+    source-map-js: ^1.0.2
+  checksum: e39ac60ccd1542d4f9d93d894048aac0d686b3bb38e927d8386005718e6793dbbb46930f0a523fe382f1bbd843c6d980aaea791252bf5e176180e5a4336d9679
+  languageName: node
+  linkType: hard
+
 "prelude-ls@npm:^1.2.1":
   version: 1.2.1
   resolution: "prelude-ls@npm:1.2.1"