Use an optional section for rendering quick navigation links on the mod viewer, containing them within the #sidebar element.

src/SMAPI.Web/Views/LogParser/Index.cshtml

@@ -95,16 +95,18 @@
 }
 
 @* quick navigation links *@
-@if (log != null)
-{
-    <aside id="quickNav">
-        <h4>Scroll To...</h4>
-        <ul>
-            <li><a href="#content">Top</a></li>
-            <li><a href="#filterHolder">Log Start</a></li>
-            <li><a href="#footer">Bottom</a></li>
-        </ul>
-    </aside>
+@section SidebarExtra {
+    @if (log != null)
+    {
+        <aside id="quickNav">
+            <h4>Scroll To...</h4>
+            <ul>
+                <li><a href="#content">Top</a></li>
+                <li><a href="#filterHolder">Log Start</a></li>
+                <li><a href="#footer">Bottom</a></li>
+            </ul>
+        </aside>
+    }
 }
 
 @* upload result banner *@

src/SMAPI.Web/Views/Shared/_Layout.cshtml

@@ -30,6 +30,8 @@
             <li><a href="@Url.PlainAction("Index", "LogParser", values: null)">Log parser</a></li>
             <li><a href="@Url.PlainAction("Index", "JsonValidator", values: null)">JSON validator</a></li>
         </ul>
+
+        @RenderSection("SidebarExtra", required: false)
     </div>
     <div id="content-column">
         <div id="content">

src/SMAPI.Web/wwwroot/Content/css/log-parser.css

@@ -13,9 +13,6 @@ caption {
 #output {
     padding: 10px;
     overflow: auto;
-    z-index: 1;
-    background: #fff;
-    position: relative;
 }
 
 #output h2 {

src/SMAPI.Web/wwwroot/Content/css/main.css

@@ -72,7 +72,6 @@ a {
     color: #666;
 }
 
-#quickNav h4,
 #sidebar h4 {
     margin: 1.5em 0 0.2em 0;
     width: 10em;
@@ -81,13 +80,11 @@ a {
     font-weight: normal;
 }
 
-#quickNav a,
 #sidebar a {
     color: #77B;
     border: 0;
 }
 
-#quickNav ul, #quickNav li,
 #sidebar ul, #sidebar li {
     margin: 0;
     padding: 0;
@@ -96,7 +93,6 @@ a {
     color: #888;
 }
 
-#quickNav li,
 #sidebar li {
     margin-left: 1em;
 }
@@ -105,10 +101,8 @@ a {
 
 #quickNav {
     position: fixed;
-    left: 8px;
     bottom: 3em;
     width: 12em;
-    color: #666;
 }
 
 @media (max-height: 400px) {