add custom stylesheet ¯\_(ツ)_/¯

functions.php

@@ -0,0 +1,8 @@
+<?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' );