How to use facebook activity feed.?

Hey there everyone, I am trying to use HTML 5 and the Facebook activity feed widget. I am in a web design class and I am redoing my local firedepartments web page as my final exam because that is how the class is set up. The code I have that I copy/pasted into my page is

<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/pages/Hebron-Volunteer-Fire-Deparment/303732113677";

fjs.parentNode.insertBefore(js, fjs);

}(document, 'script', 'facebook-jssdk'));</script>

<div class="fb-activity" href="http://facebook.com/pages/Hebron-Volunteer-Fire-De... data-site="hebronfire.net" data-width="700px" data-height="350px" data-header="true" data-recommendations="false"></div>

I filled in the hrref="" part myself, I have tried all sorts of combinations of urls and moving around the code and none of it will show up. I have tested it in Chrome, Firefox and IE, all in the latest versions, and it shows up in none of them. If you need more of the code I can send you the HTML and CSS file for the page, but I don't see anything in there that I think would ruin the page.