diff --git a/assets/stylesheets/layout/layout-sidebar.css b/assets/stylesheets/layout/layout-sidebar.css
index 83ff7ac..50acf82 100644
--- a/assets/stylesheets/layout/layout-sidebar.css
+++ b/assets/stylesheets/layout/layout-sidebar.css
@@ -45,5 +45,9 @@
       width: var(--layout-sidebar-content-width);
       margin-left: var(--grid-gutter);
     }
+
+    & > * {
+      max-width: var(--layout-sidebar-content-width);
+    }
   }
 }
diff --git a/public/stylesheets/style.css b/public/stylesheets/style.css
index b897eab..13d6a11 100644
--- a/public/stylesheets/style.css
+++ b/public/stylesheets/style.css
@@ -916,6 +916,10 @@ input[type="reset"]:focus,
   }
 }
 
+.layout-sidebar__content > * {
+  max-width: 732px;
+}
+
 .grid-list {
 display: -webkit-box;
 display: -ms-flexbox;