Add core-js and normalize.css

package.json

@@ -24,9 +24,11 @@
   },
   "dependencies": {
     "@researchgate/react-intersection-observer": "^0.5.0",
+    "core-js": "^2.5.3",
     "intersection-observer": "^0.5.0",
     "lodash": "^4.17.4",
     "netlify-identity-widget": "^1.2.0",
+    "normalize.css": "^7.0.0",
     "polished": "^1.7.0",
     "react": "^16.0.0",
     "react-dom": "^16.0.0",

src/index.js

@@ -1,8 +1,10 @@
+import 'core-js/es6'
 import React from 'react'
 import { render } from 'react-snapshot'
 import App from './App'
 import registerServiceWorker from './registerServiceWorker'
 import './netlifyIdentity'
+import 'normalize.css'
 const rootEl = document.getElementById('root')
 render(<App />, rootEl)
 

yarn.lock

@@ -1687,6 +1687,10 @@ core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.1.tgz#ae6874dc66937789b80754ff5428df66819ca50b"
 
+core-js@^2.5.3:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -4857,6 +4861,10 @@ normalize-url@^1.4.0:
     query-string "^4.1.0"
     sort-keys "^1.0.0"
 
+normalize.css@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/normalize.css/-/normalize.css-7.0.0.tgz#abfb1dd82470674e0322b53ceb1aaf412938e4bf"
+
 npm-conf@^1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/npm-conf/-/npm-conf-1.1.3.tgz#256cc47bd0e218c259c4e9550bf413bc2192aff9"