diff --git a/styles.css b/styles.css
index 00c7d1729cf86be3e8af3a26eaf563fc49abb797..8351a74d822896ff0ac7df060125720e07be6918 100644
--- a/styles.css
+++ b/styles.css
@@ -11,8 +11,8 @@ body {
 }
 
 .memory-game {
-  width: 100%;
-  height: 100%;
+  width: 640px;
+  height: 640px;
   margin: auto;
   display: flex;
   flex-wrap: wrap;