feat: support Tailwind CSS 3 (#112)

Author: lekhmanrus

README.md

@@ -44,8 +44,7 @@ Example config with `jit` enabled:
 // tailwind.config.js
 
 module.exports = {
-  mode: 'jit',
-  purge: [
+  content: [
     './app/**/*.{css,xml,html,vue,svelte,ts,tsx}'
   ],
   darkMode: false, // or 'media' or 'class'

build.js

@@ -29,7 +29,5 @@ fs.readFile(inputFile, (err, css) => {
       }
       return result
     })
-    .then(result => {
-      console.log('Built.')
-    })
+    .then(() => console.log('Built.'))
 })

demo/app/app.css

@@ -1,2 +1,2 @@
 @tailwind components;
-@tailwind utilities;
+@tailwind utilities;