Theme JS is available but theme CSS isn’t
It seems to me best to separate styles, from scripts and other assets. This worked: function my_theme_enqueue_styles() { wp_enqueue_style( ‘parent-style’, get_parent_theme_file_uri() . ‘style.css’ ); } add_action( ‘my_theme_enqueue_styles’, ‘wp_enqueue_styles’ ); function my_theme_enqueue_assets() { wp_enqueue_script( ‘behavior’, get_theme_file_uri( ‘behavior.js’ ), array(), null, true ); } add_action( ‘wp_enqueue_scripts’, ‘my_theme_enqueue_assets’ );