diff --git a/learning-resources-react/package-lock.json b/learning-resources-react/package-lock.json
index 9dbfa1d..6ce869d 100644
--- a/learning-resources-react/package-lock.json
+++ b/learning-resources-react/package-lock.json
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@@ -4168,6 +4340,25 @@
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+      "requires": {
+        "@babel/runtime": "^7.3.1",
+        "css-vendor": "^2.0.6",
+        "jss": "10.0.0"
+      }
+    },
     "jsx-ast-utils": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/jsx-ast-utils/-/jsx-ast-utils-2.1.0.tgz",
@@ -8315,6 +8611,11 @@
       "resolved": "https://registry.npmjs.org/normalize-range/-/normalize-range-0.1.2.tgz",
       "integrity": "sha1-LRDAa9/TEuqXd2laTShDlFa3WUI="
     },
+    "normalize-scroll-left": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/normalize-scroll-left/-/normalize-scroll-left-0.2.0.tgz",
+      "integrity": "sha512-t5oCENZJl8TGusJKoCJm7+asaSsPuNmK6+iEjrZ5TyBj2f02brCRsd4c83hwtu+e5d4LCSBZ0uoDlMjBo+A8yA=="
+    },
     "normalize-url": {
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-3.3.0.tgz",
@@ -8851,6 +9152,11 @@
         "ts-pnp": "^1.0.0"
       }
     },
+    "popper.js": {
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.16.0.tgz",
+      "integrity": "sha512-+G+EkOPoE5S/zChTpmBSSDYmhXJ5PsW8eMhH8cP/CQHMFPBG/kC9Y5IIw6qNYgdJ+/COf0ddY2li28iHaZRSjw=="
+    },
     "portfinder": {
       "version": "1.0.20",
       "resolved": "https://registry.npmjs.org/portfinder/-/portfinder-1.0.20.tgz",
@@ -10122,6 +10428,27 @@
         "workbox-webpack-plugin": "4.2.0"
       }
     },
+    "react-transition-group": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/react-transition-group/-/react-transition-group-4.3.0.tgz",
+      "integrity": "sha512-1qRV1ZuVSdxPlPf4O8t7inxUGpdyO5zG9IoNfJxSO0ImU2A1YWkEQvFPuIPZmMLkg5hYs7vv5mMOyfgSkvAwvw==",
+      "requires": {
+        "@babel/runtime": "^7.5.5",
+        "dom-helpers": "^5.0.1",
+        "loose-envify": "^1.4.0",
+        "prop-types": "^15.6.2"
+      },
+      "dependencies": {
+        "@babel/runtime": {
+          "version": "7.6.3",
+          "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.6.3.tgz",
+          "integrity": "sha512-kq6anf9JGjW8Nt5rYfEuGRaEAaH1mkv3Bbu6rYvLOpPh/RusSJXuKPEAoZ7L7gybZkchE8+NV5g9vKF4AGAtsA==",
+          "requires": {
+            "regenerator-runtime": "^0.13.2"
+          }
+        }
+      }
+    },
     "read-pkg": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
@@ -11553,6 +11880,11 @@
       "resolved": "https://registry.npmjs.org/timsort/-/timsort-0.3.0.tgz",
       "integrity": "sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q="
     },
+    "tiny-warning": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tiny-warning/-/tiny-warning-1.0.3.tgz",
+      "integrity": "sha512-lBN9zLN/oAf68o3zNXYrdCt1kP8WsiGW8Oo2ka41b2IM5JL/S1CTyX1rW0mb/zSuJun0ZUrDxx4sqvYS2FWzPA=="
+    },
     "tmp": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
diff --git a/learning-resources-react/yarn.lock b/learning-resources-react/yarn.lock
index 38721ea..4206730 100644
--- a/learning-resources-react/yarn.lock
+++ b/learning-resources-react/yarn.lock
@@ -3709,14 +3709,16 @@ eslint-scope@^4.0.0, eslint-scope@^4.0.3:
     estraverse "^4.1.1"
 
 eslint-utils@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.3.1.tgz#9a851ba89ee7c460346f97cf8939c7298827e512"
-  integrity sha512-Z7YjnIldX+2XMcjr7ZkgEsOj/bREONV60qYeB/bjMAqqqZ4zxKyWX+BOUkdmRmA9riiIPVvo5x86m5elviOk0Q==
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.4.3.tgz#74fec7c54d0776b6f67e0251040b5806564e981f"
+  integrity sha512-fbBN5W2xdY45KulGXmLHZ3c3FHfVYmKg0IrAKGOkT/464PQsx2UeIzfz1RmEci+KLm1bBaAzZAh8+/E+XAeZ8Q==
+  dependencies:
+    eslint-visitor-keys "^1.1.0"
 
-eslint-visitor-keys@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
-  integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
+eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
+  integrity sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==
 
 eslint@^5.16.0:
   version "5.16.0"