diff --git a/index.html b/index.html
index b685d51..2f22454 100644
--- a/index.html
+++ b/index.html
@@ -14,12 +14,12 @@
     <title>NES.css - NES-style CSS Framework</title>
 
     <link href="https://fonts.googleapis.com/css?family=Press+Start+2P" rel="stylesheet">
-    <link href="./css/nes.css" rel="stylesheet" />
+    <link href="https://unpkg.com/nes.css/css/nes.min.css" rel="stylesheet" />
     <link href="./style.css" rel="stylesheet" />
 
     <meta property="og:type" content="website" />
     <meta property="og:title" content="NES.css" />
-    <meta property="og:url" content="https://bcrikko.github.io/NES.css/" />
+    <meta property="og:url" content="https://nostalgic-css.github.io/NES.css/" />
     <meta property="og:description" content="NES-style CSS Framework | ファミコン風CSSフレームワーク" />
     <meta property="og:image" content="https://user-images.githubusercontent.com/5305599/49061716-da649680-f254-11e8-9a89-d95a7407ec6a.png" />
     <meta name="twitter:card" content="summary_large_image" />
@@ -37,7 +37,7 @@
       <p>NES-style CSS Framework.</p>
     </header>
 
-    <a class="github-link" href="https://github.com/BcRikko/NES.css" target="_blank">
+    <a class="github-link" href="https://github.com/nostalgic-css/NES.css" target="_blank">
       <p class="nes-balloon from-right">Fork me<br />on GitHub</p>
       <i class="nes-octocat"></i>
     </a>
@@ -99,14 +99,14 @@
     <section class="nes-container with-title">
       <h2 class="title">Avatars</h2>
       <div>
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-small">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-medium">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-large">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-small is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-medium is-rounded">
-        <img src="http://www.gravatar.com/avatar" class="nes-avatar is-large is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-small">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-medium">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-large">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-small is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-medium is-rounded">
+        <img src="https://www.gravatar.com/avatar" class="nes-avatar is-large is-rounded">
       </div>
     </section>