Add the following code to the top of your functions.php file and anything underneath the top comments of your style.css file in your hello-elementor-child folder will be used on top of the default hello-elementor style.css file.
//* Enqueue style.css from child theme
function hello_elementor_child_enqueue_scripts() {
wp_enqueue_style(
'hello-elementor-child-style',
get_stylesheet_directory_uri() . '/style.css',
[
'hello-elementor-theme-style',
],
'1.0.0'
);
}
add_action( 'wp_enqueue_scripts', 'hello_elementor_child_enqueue_scripts', 20 );