fix: implement tailwindcss

tailwind.config.js

@@ -0,0 +1,11 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    './src/**/*.{html,njk,md,js}',
+    './.eleventy.js',
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+};