Adding tailwind as css library, build config and fetch posts fix

package.json

@@ -8,7 +8,8 @@
     "gatsby-link": "^1.6.40",
     "gatsby-plugin-react-helmet": "^2.0.10",
     "gatsby-source-wordpress": "^2.0.93",
-    "react-helmet": "^5.2.0"
+    "react-helmet": "^5.2.0",
+    "tailwindcss": "^0.6.1"
   },
   "keywords": [
     "gatsby"
@@ -16,7 +17,8 @@
   "license": "MIT",
   "scripts": {
     "build": "gatsby build",
-    "develop": "gatsby develop",
+    "build:css": "tailwind build ./src/styles/index.tailwind.css -c ./tailwind.config.js -o ./src/styles/index.css",
+    "develop": "npm run build:css && gatsby develop",
     "format": "prettier --write 'src/**/*.js'",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
@@ -27,4 +29,4 @@
     "type": "git",
     "url": "https://github.com/gatsbyjs/gatsby-starter-default"
   }
-}
+}