Added stylelint config

.stylelintrc

@@ -0,0 +1,11 @@
+{
+  "extends": [
+    "stylelint-config-adidas",
+    "stylelint-config-adidas-bem",
+    "stylelint-config-recommended-scss"
+  ],
+  "syntax": "scss",
+  "plugins": [
+    "stylelint-scss"
+  ]
+}

package.json

@@ -84,6 +84,11 @@
     "serve": "^10.0.0",
     "sinon": "^6.1.5",
     "style-loader": "0.19.0",
+    "stylelint": "^9.5.0",
+    "stylelint-config-adidas": "^1.0.1",
+    "stylelint-config-adidas-bem": "^1.0.1",
+    "stylelint-config-recommended-scss": "^3.2.0",
+    "stylelint-scss": "^3.3.0",
     "sw-precache-webpack-plugin": "0.11.4",
     "url-loader": "0.6.2",
     "webpack": "3.8.1",