Facebook Like Button implementation code
<div id="fb-root"></div><script>(function(d, s, id) {var js, fjs = d.getElementsByTagName(s)[0];if (d.getElementById(id))return;js = d.createElement(s);js.id = id;js.src = "//connect.facebook.net/en_US/all.js#xfbml=1&appId=your_API_id";fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));</script>//like button<div class="fb-like" data-href="https://developers.facebook.com/docs/plugins/" data-width="16" data-height="16" data-colorscheme="light" data-layout="standard" data-action="like" data-show-faces="true" data-send="false"></div>