diff --git a/styles.css b/styles.css
index 6b08492..469980c 100644
--- a/styles.css
+++ b/styles.css
@@ -4,7 +4,7 @@
   margin: 0;
   padding: 0;
   box-sizing: border-box;
-  background-color: #008000; /* 淡い紫 */
+  background-color: #ffff00; /* 淡い紫 */
   color: #ffff00; /* 濃い紫 */
 }