diff --git a/sass/_valkey.scss b/sass/_valkey.scss
index a5cb189b..57025416 100644
--- a/sass/_valkey.scss
+++ b/sass/_valkey.scss
@@ -450,6 +450,10 @@ p {
   }
 }
 
+.left-aside-bg {
+  background: linear-gradient(to left, #e2e8f0 49%, #f1f0fa 50%);
+}
+
 .left-aside {
   background-color: #e2e8f0;
   display: flex;
diff --git a/templates/left-aside.html b/templates/left-aside.html
index d3f6538e..420e9f0d 100644
--- a/templates/left-aside.html
+++ b/templates/left-aside.html
@@ -2,14 +2,16 @@
 
 {% block content %}
 {% block subhead_content %}{% endblock subhead_content %}
-<div class="left-aside">
-    <main>
-        <div class="main-inner">
-            {% block main_content %}{% endblock main_content %}
-        </div>
-    </main>
-    <aside>
-        {% block related_content %}{% endblock related_content %}
-    </aside>
+<div class="left-aside-bg">
+    <div class="left-aside">
+        <main>
+            <div class="main-inner">
+                {% block main_content %}{% endblock main_content %}
+            </div>
+        </main>
+        <aside>
+            {% block related_content %}{% endblock related_content %}
+        </aside>
+    </div>
 </div>
 {% endblock content %}
\ No newline at end of file