changed nav position from fixed to sticky so it doesn't overlap with first header

styles/elements/nav.css

@@ -3,7 +3,7 @@ nav {
 	display: flex;
 	flex-direction: row;
 	justify-content: center;
-	position: fixed;
+	position: sticky;
 	top: 0;
 	background-color: #f6f6f6;
 	z-index: 1;