try to make sidebar a bit more discoverable by leaving a little edge of it sticking out

multi_page_viewer.css

@@ -181,7 +181,7 @@ span {
   width: 200px;
   top: 62px;
   bottom: 18px;
-  left: -170px;
+  left: -140px;
   transition: left 0.25s ease-in-out 1s;
   -moz-transition: left 0.25s ease-in-out 1s;
   -webkit-transition: left 0.25s ease-in-out 1s;