add day 79 (finally object reactive data)

day79/postcss.config.js

@@ -0,0 +1,7 @@
+import tailwind from 'tailwindcss';
+import tailwindConfig from './tailwind.config.js';
+import autoprefixer from 'autoprefixer';
+
+export default {
+	plugins:[tailwind(tailwindConfig),autoprefixer]
+};