diff --git a/apps/web/src/index.css b/apps/web/src/index.css
index 97cb06366f07694ac74bdaec0aca95f2286353bc..0ecf9313919f217b984904db8ee6512886f6dc49 100644
--- a/apps/web/src/index.css
+++ b/apps/web/src/index.css
@@ -294,6 +294,7 @@ label:has(> select#reasoning-effort) select {
   background: var(--muted);
   padding: 0.1rem 0.35rem;
   color: var(--foreground);
+  font-size: 0.75rem;
 }
 
 .chat-markdown pre {
@@ -310,6 +311,7 @@ label:has(> select#reasoning-effort) select {
   background: transparent;
   padding: 0;
   line-height: 1.5;
+  font-size: 0.875rem;
 }
 
 .chat-markdown table {