ad tailwind, generate and export css to be used in app

config/tailwind.config.js

@@ -0,0 +1,18 @@
+const defaultTheme = require('tailwindcss/defaultTheme')
+
+module.exports = {
+  content: [
+    './public/*.html',
+    './app/helpers/**/*.rb',
+    './app/javascript/**/*.js',
+    './app/views/**/*.{erb,haml,html,slim}'
+  ],
+  corePlugins: {
+    preflight: false,
+  },
+  plugins: [
+    require('@tailwindcss/forms'),
+    require('@tailwindcss/aspect-ratio'),
+    require('@tailwindcss/typography'),
+  ]
+}