css/footer.css?ver=20220401

index.html

@@ -8,7 +8,7 @@
   <link rel="stylesheet" href="css/reset.css">
   <link rel="stylesheet" href="css/style.css">
   <link rel="stylesheet" href="css/header_pc.css">
-  <link rel="stylesheet" href="css/footer.css">
+  <link rel="stylesheet" href="css/footer.css?ver=20220401">
   <link rel="stylesheet" href="css/table.css">
   <link rel="stylesheet" href="css/slideme.css">
   <link rel="stylesheet" href="css/header_mobile.css">