diff --git a/Zoom.css b/Zoom.css
index a687354..e320458 100644
--- a/Zoom.css
+++ b/Zoom.css
@@ -1,4 +1,4 @@
-h1 {
+h1 {text-align:center;
   color: #364e96;/*文字色*/
   border: solid 3px #364e96;/*線色*/
   padding: 0.5em;/*文字周りの余白*/