diff --git a/yuto/quiz/main.css b/yuto/quiz/main.css
index ae8ff0c..c1c6584 100644
--- a/yuto/quiz/main.css
+++ b/yuto/quiz/main.css
@@ -33,7 +33,7 @@
     display: inline-flex;
     align-items: center;
     justify-content: center;
-    width: 15%;
+    width: 10%;
     height: 40px;
     margin: 0 10px;
     padding: 0;