/* Meta Author on Certain Posts */
function jnews_meta_author_on_certain_post() {
	if ( is_singular() && is_single() ) {
		$url_list = array( /* List Permalink When You Make Post or Edit Post  */
			'http://localhost/wordpress2/2021/03/01/hello-world/',
			'http://localhost/wordpress2/2021/02/05/theres-no-such-thing-as-a-good-dog/'
		);

		if ( ! in_array( get_permalink(), $url_list ) ) {
			?>
				<style id="meta_author_on_certain_post" scoped>
					.jeg_content.jeg_singlepage .jeg_main_content .entry-header .jeg_meta_container .jeg_post_meta .meta_left .jeg_meta_author, /* For Meta Author */
					.jeg_content.jeg_singlepage .jeg_main_content .jnews_author_box_container /* For Author Box if you want to display it too */ {
						display: none; 
					}
				</style>
			<?php
		}
	}
}

add_action( 'wp_head', 'jnews_meta_author_on_certain_post' );