diff --git a/index.html b/index.html
index f23e5e4..545f3aa 100644
--- a/index.html
+++ b/index.html
@@ -6,6 +6,10 @@
     <link rel="stylesheet" type="text/css" href="style.css" />
   </head>
   <body>
+    <div class="jswarning" id="jswarning">注意：JavsScriptはONです。安全・安心の為、JavaScriptをOFFにしてお願い致します。</div>
+    <script type="text/javascript">
+      document.getElementById('jswarning').style.display = 'block';
+    </script>
     <h1>ようこそ、076.ne.jpへ</h1>
     <div class="container">
       <p>
diff --git a/style.css b/style.css
index 1a07849..36536dd 100644
--- a/style.css
+++ b/style.css
@@ -2,22 +2,40 @@ body {
   background: #232629;
   color: #fcfcfc;
 }
+
+.jswarning {
+  background-color: rgb(170, 170, 0);
+  color: rgb(252, 252, 252);
+  display: none;
+  padding: 10px;
+  z-index: 5000;
+  position: fixed;
+  top: 0px;
+  left: 0px;
+  right: 0px;
+  border: 4px #dde22d ridge;
+}
+
 a {
   color: #ea81e8;
 }
+
 h1, .footer {
   text-align: center;
 }
+
 hr {
   border-color: #8800dd;
   box-shadow: 2px 2px 10px #9900ff;
   width: 100%;
   max-width: 1700px;
 }
+
 .container {
   width: 100%;
   text-align: center;
 }
+
 .serv-body, .nihongo, .english {
   display: inline-block;
   vertical-align: top;
@@ -25,6 +43,7 @@ hr {
   padding: 4px;
   margin: 8px;
 }
+
 .serv-body {
   background-color: #170b15;
   border: 1px #a93da9 groove;
@@ -32,6 +51,7 @@ hr {
   height: 170px;
   border-radius: 10px;
 }
+
 .serv-title {
   font-size: 24px;
   font-weight: bolder;
@@ -41,18 +61,22 @@ hr {
   border-radius: 6px;
   text-align: center;
 }
+
 .nihongo > a, .english > a {
   color: #ffeb3b;
 }
+
 .nihongo, .english {
   width: 100%;
   max-width: 830px;
 }
+
 .nihongo {
   background-color: #21082b;
   border: 1px #ff22ff groove;
   color: #d6a9d6;
 }
+
 .english {
   background-color: #0b0c17;
   border: 1px #2196f3 groove;
