Client WP Dashboard Makeover Blueprint - Branded Login Screen

cwpdmb-branded-login-screen

function my_login_logo() {
  echo '<style>.login h1 a {
    background-image: url(/path/to/logo.png);
    background-size: contain;
    width: 100%;
  }</style>';
}
add_action('login_enqueue_scripts', 'my_login_logo');