diff --git a/SWAN/11-last.css b/SWAN/11-last.css
index 7297769..cb0ec43 100644
--- a/SWAN/11-last.css
+++ b/SWAN/11-last.css
@@ -66,6 +66,7 @@
 /*エリア全体を中央寄せ*/
 .wrapper{
   width:90%;
+  max-width:900px;
   margin:0 auto;
 }