diff --git a/tinyweb_forum/handlers.py b/tinyweb_forum/handlers.py
index 91eca8d..7875d05 100644
--- a/tinyweb_forum/handlers.py
+++ b/tinyweb_forum/handlers.py
@@ -21,9 +21,11 @@ FORUM_CSS = """
 .forum-form { max-width: 500px; }
 .forum-form input:not([type=checkbox]):not([type=radio]), .forum-form textarea { width: 100%; box-sizing: border-box; padding: 6px; margin-bottom: 8px; }
 .forum-form input[type=checkbox] { width: auto; margin: 0; }
+.forum-form label.inline-label input { width: auto; display: inline; }
 .forum-form button { padding: 6px 16px; }
-.forum-form label:not(.checkbox-label) { display: block; margin-bottom: 8px; }
+.forum-form label:not(.checkbox-label):not(.inline-label) { display: block; margin-bottom: 8px; }
 .forum-form label.checkbox-label { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
+.forum-form label.inline-label { display: inline; margin-bottom: 8px; }
 .forum-form small { display: block; margin-bottom: 8px; }
 </style>
 """
@@ -549,8 +551,8 @@ class ForumHandlers:
             f"<h2>storage</h2>"
             f'<form class="forum-form" method="post" action="/forum/storage">'
             f'{self._csrf_field()}'
-            f'<label>Keep threads for '
-            f'<input name="retention_days" value="{esc(retention_days)}" size="4"> days</label>'
+            f'<label class="inline-label">Keep threads for '
+            f'<input name="retention_days" value="{esc(retention_days)}" size="5"> days</label>'
             f"<small>Older threads are pruned automatically (default: 30). Set to 0 to keep everything.</small>"
             f'<button>save</button>'
             f"</form>"