diff --git a/src/judas_server/web/static/css/style.css b/src/judas_server/web/static/css/style.css
index ddba9d0..25d4811 100644
--- a/src/judas_server/web/static/css/style.css
+++ b/src/judas_server/web/static/css/style.css
@@ -52,12 +52,22 @@ header {
 }
 
 main {
+  display: flex;
+  flex-grow: 1;
+}
+
+aside {
+  width: 20rem;
+  background-color: var(--ctp-base);
+  border-right: 2px solid var(--ctp-mantle);
+}
+
+#content {
   display: flex;
   flex-direction: column;
   gap: 1rem;
-  padding: 1rem;
-  /* background-color: var(--ctp-base); */
   flex-grow: 1;
+  padding: 1rem;
 }
 
 header a {