Добавляет sass и его конфиг. Главный файл для импорта в js - main.scss

.sassrc

+{
+  "includePaths": ["node_modules"]
+}
\ No newline at end of file

package-lock.json

@@ -5765,6 +5765,15 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "dev": true
     },
+    "sass": {
+      "version": "1.26.9",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.26.9.tgz",
+      "integrity": "sha512-t8AkRVi+xvba4yZiLWkJdgJHBFCB3Dh4johniQkPy9ywkgFHNasXFEFP+RG/F6LhQ+aoE4aX+IorIWQjS0esVw==",
+      "dev": true,
+      "requires": {
+        "chokidar": ">=2.0.0 <4.0.0"
+      }
+    },
     "sax": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",

package.json

@@ -19,6 +19,7 @@
   },
   "homepage": "https://github.com/goitacademy/parcel-project-template#readme",
   "devDependencies": {
-    "parcel-bundler": "^1.12.4"
+    "parcel-bundler": "^1.12.4",
+    "sass": "^1.26.9"
   }
 }

src/index.js

+import "./sass/main.scss";

src/sass/main.scss

+