Add sass

Author: completejavascript

package.json

@@ -6,6 +6,7 @@
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
     "@testing-library/user-event": "^7.1.2",
+    "node-sass": "^4.13.0",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
     "react-scripts": "3.3.0"

src/App.css

@@ -1,17 +1,17 @@
 import React from 'react';
 import logo from './logo.svg';
-import './App.css';
+import './App.scss';
 
 function App() {
   return (
     <div className="App">
-      <header className="App-header">
-        <img src={logo} className="App-logo" alt="logo" />
+      <header className="header">
+        <img src={logo} className="logo" alt="logo" />
         <p>
           Edit <code>src/App.js</code> and save to reload.
         </p>
         <a
-          className="App-link"
+          className="link"
           href="https://reactjs.org"
           target="_blank"
           rel="noopener noreferrer"

src/App.js

@@ -0,0 +1,39 @@
+@import './scss/variables.scss';
+
+.App {
+  text-align: center;
+  .header {
+    background-color: #282c34;
+    min-height: 100vh;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    font-size: calc(10px + 2vmin);
+    color: white;
+    .logo {
+      height: 40vmin;
+      pointer-events: none;
+    }
+    .link {
+      color: $primaryColor;
+    }
+  }
+}
+@media (prefers-reduced-motion: no-preference) {
+  .App {
+    .header {
+      .logo {
+        animation: App-logo-spin infinite 20s linear;
+      }
+    }
+  }
+}
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

src/App.scss

@@ -1,6 +1,6 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
-import './index.css';
+import './index.scss';
 import App from './App';
 import * as serviceWorker from './serviceWorker';
 

src/index.js

@@ -0,0 +1,6 @@
+/**
+* Variables
+*/
+
+// Color
+$primaryColor: #61dafb;