import tailwind css

src/app/pages/welcome/welcome.html

@@ -1 +1,5 @@
-<p>welcome works!</p>
+<p>welcome works!</p>
+
+<h1 class="text-3xl font-bold underline">
+    Hello world!
+</h1>

src/styles.css

@@ -1 +1,4 @@
 /* You can add global styles to this file, and also import other style files */
+@layer theme, base, components, utilities;
+@import "tailwindcss/theme.css" layer(theme);
+@import "tailwindcss/utilities.css" layer(utilities) important;