Allow scroll in computers that put the navigation over scroll control. When the document is ready it will check the difference between the body-inner and the page-wrapper width to move the layer only this width allowing the user to scroll.

theme/javascript/app.js

@@ -1,52 +1,54 @@
 require([
-    "jQuery",
-    "utils/storage",
-    "utils/analytic",
-    "utils/sharing",
+  "jQuery",
+  "utils/storage",
+  "utils/analytic",
+  "utils/sharing",
 
-    "core/state",
-    "core/keyboard",
-    "core/exercise",
-    "core/quiz",
-    "core/progress",
-    "core/sidebar",
-    "core/search"
-], function($, storage, analytic, sharing, state, keyboard, exercise, quiz, progress, sidebar, search){
-    $(document).ready(function() {
-        var $book = state.$book;
+  "core/state",
+  "core/keyboard",
+  "core/exercise",
+  "core/progress",
+  "core/sidebar",
+  "core/search"
+], function($, storage, analytic, sharing, state, keyboard, exercise, progress, sidebar, search){
+  $(document).ready(function() {
+    var $book, bodyInnerWidth, pageWrapperWidth;
+    $book = state.$book;
 
-        // Init sidebar
-        sidebar.init();
+    // Init sidebar
+    sidebar.init();
 
-        // Load search
-        search.init();
+    // Load search
+    search.init();
 
-        // Init keyboard
-        keyboard.init();
+    // Init keyboard
+    keyboard.init();
 
-        if (state.githubId) {
-            // Initialize storage
-            storage.setBaseKey(state.githubId);
+    if (state.githubId) {
+      // Initialize storage
+      storage.setBaseKey(state.githubId);
 
-            // Star and watch count
-            $.getJSON("https://api.github.com/repos/"+state.githubId)
-            .done(function(repo) {
-                $book.find(".count-star span").text(repo.stargazers_count);
-                $book.find(".count-watch span").text(repo.subscribers_count);
-            });
-        }
+      // Star and watch count
+      $.getJSON("https://api.github.com/repos/"+state.githubId)
+        .done(function(repo) {
+          $book.find(".count-star span").text(repo.stargazers_count);
+          $book.find(".count-watch span").text(repo.subscribers_count);
+        });
+    }
 
-        // Bind exercises
-        exercise.init();
-        quiz.init();
+    // Bind exercise
+    exercise.init();
 
-        // Bind sharing button
-        sharing.init();
+    // Bind sharing button
+    sharing.init();
 
-        // Show progress
-        progress.show();
+    // Show progress
+    progress.show();
 
-        // Focus on content
-        $(".book-body").focus();
-    });
+    // Focus on content
+    $(".book-body").focus();
+    bodyInnerWidth = parseInt($('.body-inner').css('width'), 10);
+    pageWrapperWidth = parseInt($('.page-wrapper').css('width'), 10);
+    $('.navigation-next').css('margin-right', (bodyInnerWidth - pageWrapperWidth) + 'px');
+  });
 });