diff --git a/resources/scripts/header.js b/resources/scripts/header.js
index da729428..6b9b0763 100644
--- a/resources/scripts/header.js
+++ b/resources/scripts/header.js
@@ -4,56 +4,56 @@
  */
 
 (function() {
-    // Hide header on scroll down
-    var didScroll,
-        lastScrollTop = 0,
-        navbarHeight = 0,
-        delta = 0,
-        header = document.getElementsByTagName('header')[0],
-        headerContainer = document.querySelector('.mw-header-container');
+	// Hide header on scroll down
+	var didScroll,
+		lastScrollTop = 0,
+		navbarHeight = 0,
+		delta = 0,
+		header = document.getElementsByTagName('header')[0],
+		headerContainer = document.querySelector('.mw-header-container');
 
-    if (headerContainer !== null) {
-        navbarHeight = headerContainer.offsetHeight;
-    }
+	if (headerContainer !== null) {
+		navbarHeight = headerContainer.offsetHeight;
+	}
 
-    window.addEventListener('scroll', function() {
-        didScroll = true;
-    });
+	window.addEventListener('scroll', function() {
+		didScroll = true;
+	});
 
-    function hasScrolled() {
-        var st = window.scrollY,
-            body,
-            html,
-            documentHeight;
+	function hasScrolled() {
+		var st = window.scrollY,
+			body,
+			html,
+			documentHeight;
 
-        if (Math.abs(lastScrollTop - st) <= delta) {
-            return;
-        }
+		if (Math.abs(lastScrollTop - st) <= delta) {
+			return;
+		}
 
-        if (st > lastScrollTop && st > navbarHeight) {
-            // If scrolled down and past the navbar, add class .nav-up.
-            // Scroll Down
-            header.classList.remove('nav-down');
-            header.classList.add('nav-up');
-        } else {
-            // Scroll Up
-            body = document.body;
-            html = document.documentElement;
-            documentHeight = Math.max(body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight);
+		if (st > lastScrollTop && st > navbarHeight) {
+			// If scrolled down and past the navbar, add class .nav-up.
+			// Scroll Down
+			header.classList.remove('nav-down');
+			header.classList.add('nav-up');
+		} else {
+			// Scroll Up
+			body = document.body;
+			html = document.documentElement;
+			documentHeight = Math.max(body.scrollHeight, body.offsetHeight, html.clientHeight, html.scrollHeight, html.offsetHeight);
 
-            if (st + window.innerHeight < documentHeight) {
-                header.classList.remove('nav-up');
-                header.classList.add('nav-down');
-            }
-        }
+			if (st + window.innerHeight < documentHeight) {
+				header.classList.remove('nav-up');
+				header.classList.add('nav-down');
+			}
+		}
 
-        lastScrollTop = st;
-    }
+		lastScrollTop = st;
+	}
 
-    setInterval(function() {
-        if (didScroll) {
-            hasScrolled();
-            didScroll = false;
-        }
-    }, 250);
+	setInterval(function() {
+		if (didScroll) {
+			hasScrolled();
+			didScroll = false;
+		}
+	}, 250);
 })();
\ No newline at end of file