Some styling and code cleanup

js/header.js

@@ -1,19 +0,0 @@
-<script>
-// When the user scrolls the page, execute myFunction
-window.onscroll = function() {headerscroll()};
-
-// Get the header
-var header = document.getElementById("NavHeader");
-
-// Get the offset position of the navbar
-var sticky = header.offsetTop;
-
-// Add the sticky class to the header when you reach its scroll position. Remove "sticky" when you leave the scroll position
-function headerscroll() {
-  if (window.pageYOffset > sticky) {
-    header.classList.add("sticky");
-  } else {
-    header.classList.remove("sticky");
-  }
-}
-</script>