2019.05.13(pm): How do I change the display of the copyright in the footer of a WordPress site?

To change the copyright notation in the footer displayed at the bottom of the site, you must edit the CSS in the Theme Editor. The initial setup is probably written as “Thank you for making it with WordPress.”

You can check the CSS code by right-clicking on the part and then clicking Inspect Components. Perhaps, the code associated with it will be in the site.info php file. Then go into the location and look at the code to see the following code.

<?php
/**
 * Displays footer site info
 *
 * @package WordPress
 * @subpackage Twenty_Seventeen
 * @since 1.0
 * @version 1.0
 */

?>
<div class="site-info">
   <?php
   if ( function_exists( 'the_privacy_policy_link' ) ) {
      the_privacy_policy_link( '', '<span role="separator" aria-hidden="true"></span>' );
   }
   ?>
   <a href="<?php echo esc_url( __( 'https://wordpress.org/', 'twentyseventeen' ) ); ?>" class="imprint">
      <?php printf( __( 'Proudly powered by %s', 'twentyseventeen' ), 'WordPress' ); ?>
   </a>
</div><!-- .site-info -->

Now, of the above code,

<a href="<?php echo esc_url( __( 'https://wordpress.org/', 'twentyseventeen' ) ); ?>" class="imprint">
      <?php printf( __( 'Proudly powered by %s', 'twentyseventeen' ), 'WordPress' ); ?>

You can enter the copyright notice using this site’s address and your name.