After modifying the code in my functions.php file to display a different logo on my login page, I'm getting a blank square instead. I've added a custom .png image (326x67) to my (child) theme's image folder, and the code I've added to functions.php is as follows:
function custom_loginlogo() {
echo '<style type="text/css">
h1 a {background-image: url('.get_bloginfo('template_directory').'/images/login_logo.png) !important; }
</style>';
}
add_action('login_head', 'custom_loginlogo');
Could it be a permissions problem (like an .htaccess file blocking the image)?