Centering Logo etc on Login Page

til now i have these two things in my child-theme funtions.php for having my own logo on the login page:

function custom_login_logo() {
    echo '<style type="text/css">
    h1 a { background-image:url(/wp-content/uploads/logo.png) !important;
    background-size: contain !important; 
    height: 100px !important; 
    width: 300px !important; }
    </style>';
}
add_action('login_head', 'custom_login_logo');

add_filter( 'login_headerurl', 'custom_loginlogo_url' );
function custom_loginlogo_url($url) {
  return 'https://url...';
}

the last one is for having a custom link target

but the function above seems to be a better way

if you like to center all – even the input fields you can integrate on the function

#login * { text-align: center !important }

so :

function my_login_logo() { ?>
    <style type="text/css">
        body.login div#login h1 a {
            margin-left: -99px;
        }
        #login * { text-align: center !important }
    </style>
<?php }
add_action( 'login_enqueue_scripts', 'my_login_logo' );

function my_login_logo() { ?>
    <style type="text/css">
        body.login div#login h1 a {
            margin-left: -99px;
        }
        .login #backtoblog, .login #nav { 
	text-align: center !important 
        }
    </style>
<?php }
add_action( 'login_enqueue_scripts', 'my_login_logo' );