HI Mahesh, I use the same plugin: tinymce-advanced.
Strange that this does not work on my site.
Here’s functions.php in my child theme:
/**
* Loading Parent theme stylesheet
*
*/
add_action( 'wp_enqueue_scripts', 'gridalicious_child_enqueue_styles' );
function gridalicious_child_enqueue_styles() {
wp_enqueue_style( 'gridalicious-parent-style', get_template_directory_uri() . '/style.css' );
}
add_theme_support('editor-style');
function wpdocs_theme_add_editor_styles() {
add_editor_style( 'editor-style.css' );
}
add_action( 'admin_init', 'wpdocs_theme_add_editor_styles' );