Added cover image to jumbotron

js/application.js

@@ -1 +1,8 @@
-// Your JavaScript
+// Your JavaScript
+$(function() {
+  $('.container').find('img').each(function(){
+    var parent = $(this).parent();
+    var imgClass = (this.width/this.height > parent.width()/parent.height()) ? 'wide' : 'tall';
+    $(this).addClass(imgClass);
+  })
+});