Artpop Child Theme

Wondering if anyone can help me–

I want to remove the author name, date and category tag from all posts.

I created an artpop child theme with a function.php and style.css. But no matter what I do either in php or in the Child Theme’s stylesheet, I see no changes on my site. Is there a specific line of code for the Artpop theme that I need to be using in the css?

I also wondered whether I enqueued the parent stylesheet in my Child Theme correctly?:

<?php
add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );
function my_theme_enqueue_styles() {
    $parenthandle = 'artpop-style';
    $theme = wp_get_theme();
    wp_enqueue_style( $parenthandle, get_template_directory_uri() . '/style.css', 
        array(),  // if the parent theme code has a dependency, copy it to here
        $theme->parent()->get('Version')
    );
    wp_enqueue_style( 'child-style', get_stylesheet_uri(),
        array( $parenthandle ),
        $theme->get('Version')
    );
}
?>