import sample-wp-block-theme

functions.php

@@ -0,0 +1,10 @@
+<?php
+
+add_action('init', 'custom_stylesheet');
+ 
+function custom_stylesheet() {
+    wp_register_style( 'custom-styles', get_template_directory_uri() . '/style.css' );
+    wp_enqueue_style( 'custom-styles' );
+}
+
+add_action( 'wp_enqueue_scripts', 'custom_stylesheet' );