Add a Logo to the WordPress Login

functions.php

<?php

// Add a Logo to the WordPress Login
add_action('login_head', 'bloggerpilot_loginlogo');
function bloggerpilot_loginlogo() {
  echo '<style type="text/css">
    h1 a {
		background-image: url(https://bloggerpilot.com/wp-content/uploads/2021/06/logo.svg) !important;
		width: 200px !important;
		height: 42px !important;
		background-size: 200px !important;
    }
  </style>';
}