Petertje

Ik heb de Simple Custom CSS geïnstalleerd en de bovenstaande code erin geplakt, echter veranderd er op mijn pagina niets.
Hieronder de hele code waarin dus het bovenstaande in geplakt is.

<?php
/**
* Plugin Name: Simple Custom CSS
* Plugin URI: http://johnregan3.github.io/simple-custom-css
* Description: The simple, solid way to add custom CSS to your WordPress website. Simple Custom CSS allows you to add your own styles or override the default CSS of a plugin or theme.
* Author: John Regan, Danny Van Kooten
* Author URI: http://johnregan3.me
* Version: 3.2
* Text Domain: sccss
*
* Copyright 2014 John Regan (email : john@johnregan3.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @package SCCSS
* @author John Regan
* @version 3.2
*/

// Prevent direct file access
if( ! defined( ‘ABSPATH’ ) ) {
die();
}
.site-content .entry-header,
.site-content .entry-content,
.site-content .entry-summary,
.site-content .entry-meta,
.page-content {
max-width: 518px;
}
if( ! is_admin() ) {
require_once dirname( SCCSS_FILE ) . ‘/includes/public.php’;
} elseif( ! defined( ‘DOING_AJAX’ ) ) {
require_once dirname( SCCSS_FILE ) . ‘/includes/admin.php’;
}