diff --git a/404.html b/404.html
index 9a38220..e07d5f3 100644
--- a/404.html
+++ b/404.html
@@ -1,52 +1,53 @@
-<!DOCTYPE html>
-<html>
-<head>
-	<meta charset="UTF-8">
-	<meta name="viewport" content="width=device-width, initial-scale=1">
-	<meta name='description' content='568_Calc 是一个简单的多平台支持的计算器。'>
-	<meta http-equiv='content-language' content='zh-Hans-CN'>
-	<link rel="stylesheet" href="/css/loading.css">
-	<script src="/js/loading.js"></script>
-	<link rel="stylesheet" href="/css/main.css">
-	<link rel="stylesheet" href="/css/translate.css">
-	<script src="//res.zvo.cn/translate/translate.js"></script>
-	<title class="notTranslate">404</title>
-	<link rel="icon" href="/assets/favicon.svg">
-	<link rel="stylesheet" href="/css/hack/dist/hack.css">
-	<link rel="stylesheet" href="/css/hack/dist/standard.css">
-	<script src="/js/include.js"></script>
-	<script src="/js/giscus.js"></script>
-</head>
-<body class="standard">
-	<div id="loading">
-		<div id="Calc-loading_bg">
-			<img alt="正在加载" class="Calc-loader" src="/css/loading.svg"/>
-		</div>
-	</div>
-	<div class="main container">
-		<a href="//github.com/PJ-568/568_Calc" target="_blank" class="github-corner"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#795548; color:#101010; position: absolute; top: 0; border: 0; right: 0;"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a>
-
-		<a href="/"><p align="center"><img alt="568_Calc" src="assets/favicon.svg" width="40%" style="max-width:256px"/></p></a>
-
-		<h1 class="notTranslate">404</h1>
-		<p>未找到相应信息，或许您应该尝试返回主页。</p>
-
-		<div class="btn-group">
-			<button onclick="window.location.href='/';startLoading()" class="btn btn-success btn-ghost">回到主页</button>
-			<button onclick="javascript:history.back(-1);" class="btn btn-success btn-ghost">返回</button>
-		</div>
-
-		<h2>反馈</h2>
-
-		<div id="giscus-container"></div>
-		<br/>
-		<div class="btn-group">
-			<button onclick="window.location.href='/';startLoading()" class="btn btn-success btn-ghost">回到主页</button>
-			<button onclick="window.location.href='#'" class="btn btn-success btn-ghost">返回页顶</button>
-			<button onclick="javascript:history.back(-1);" class="btn btn-success btn-ghost">返回</button>
-		</div>
-		<br/>
-		<include src="/footer.html"></include>	
-	</div>
-</body>
+<!DOCTYPE html>
+<html>
+<head>
+	<meta charset="UTF-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<meta name='description' content='568_Calc 是一个简单的多平台支持的计算器。'>
+	<meta http-equiv='content-language' content='zh-Hans-CN'>
+	<link rel="stylesheet" href="/css/loading.css">
+	<script src="/js/loading.js"></script>
+	<link rel="stylesheet" href="/css/main.css">
+	<link rel="stylesheet" href="/css/translate.css">
+	<script src="//res.zvo.cn/translate/translate.js"></script>
+	<title class="notTranslate">404</title>
+	<link rel="icon" href="/assets/favicon.svg">
+	<link rel="stylesheet" href="/css/hack/dist/hack.css">
+	<link rel="stylesheet" href="/css/hack/dist/standard.css">
+	<script src="/js/include.js"></script>
+	<script src="/js/giscus.js"></script>
+</head>
+<body class="standard">
+	<div id="loading">
+		<div id="Calc-loading_bg">
+			<img alt="正在加载" class="Calc-loader" src="/css/loading.svg"/>
+		</div>
+	</div>
+	<div class="main container">
+		<a href="//github.com/PJ-568/568_Calc" target="_blank" class="github-corner"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#795548; color:#101010; position: absolute; top: 0; border: 0; right: 0;"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a>
+
+		<a href="/"><p align="center"><img alt="568_Calc" src="assets/favicon.svg" width="40%" style="max-width:256px"/></p></a>
+
+		<h1 class="notTranslate">404</h1>
+		<p>未找到相应信息，或许您应该尝试返回主页。</p>
+
+		<div class="btn-group">
+			<button onclick="window.location.href='/';startLoading()" class="btn btn-success btn-ghost">回到主页</button>
+			<button onclick="javascript:history.back(-1);" class="btn btn-success btn-ghost">返回</button>
+		</div>
+
+		<h2>反馈</h2>
+
+		<div id="giscus-container"></div>
+		<br/>
+		<div class="btn-group">
+			<button onclick="window.location.href='/';startLoading()" class="btn btn-success btn-ghost">回到主页</button>
+			<button onclick="window.location.href='#'" class="btn btn-success btn-ghost">返回页顶</button>
+			<button onclick="javascript:history.back(-1);" class="btn btn-success btn-ghost">返回</button>
+		</div>
+		<br/>
+		<include src="/footer.html"></include>	
+	</div>
+	<script src="//lf6-cdn-tos.bytecdntp.com/cdn/expire-1-y/instant.page/5.1.0/instantpage.min.js"></script>
+</body>
 </html>
\ No newline at end of file
diff --git a/index.html b/index.html
index 333b466..f89c61e 100644
--- a/index.html
+++ b/index.html
@@ -62,5 +62,6 @@
 		<br/>
 		<include src="footer.html"></include>
 	</div>
+	<script src="//lf6-cdn-tos.bytecdntp.com/cdn/expire-1-y/instant.page/5.1.0/instantpage.min.js"></script>
 </body>
 </html>
\ No newline at end of file
