Custom CSS for the login page
Create wp-login.css in your theme folder


function wpfme_loginCSS() {
	echo '';
}
add_action('login_head', 'wpfme_loginCSS');

function wpfme_has_sidebar($classes) {
    if (is_active_sidebar('sidebar')) {
        // add 'class-name' to the $classes array
        $classes[] = 'has_sidebar';
    }
    // return the $classes array
    return $classes;
}
add_filter('body_class','wpfme_has_sidebar');

Call Googles HTML5 Shim, but only for users on old versions of IE


function wpfme_IEhtml5_shim () {
	global $is_IE;
	if ($is_IE)
	echo '';
}
add_action('wp_head', 'wpfme_IEhtml5_shim');

Remove the version number of WP
Warning – this info is also available in the readme.html file in your root directory – delete this file!


remove_action('wp_head', 'wp_generator');