How to Add the Facebook Like Box / Fan Box in WordPress
Adding the Page Plugin to a Website
The standard configuration of the Page plugin includes only the header and a cover photo. This size is ideal for promoting your Page in a small space, such as the top of a sidebar.
Facebook for Developers Page Plugin
The Page plugin lets you easily embed and promote any Facebook Page on your website. Just like on Facebook, your visitors can like and share the Page without leaving your site.
class="fb-page" data-href="https://www.facebook.com/facebook" data-width="380" data-hide-cover="false" data-show-facepile="false" data-show-posts="false">