diff --git a/TC1/http_server/index.html b/TC1/http_server/index.html
index e7149a2..1169acb 100644
--- a/TC1/http_server/index.html
+++ b/TC1/http_server/index.html
@@ -1,34 +1,30 @@
+<!DOCTYPE html>
 <html>
 <head>
-
-<meta http-equiv="content-type" content="text/html" charset="utf-8">
-<meta content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" name="viewport">
-<title>Welcom TC1</title>
-
-<style type="text/css">
-fieldset{margin-bottom:10px;border:#000 solid 1px;}
-input,select,button{padding:5px;border:#777 solid 1px;}
-button{background:none;border:1px #777 solid;}
-button:disabled,select:disabled,input:disabled{background:#bfbfbf;}
-td{padding:5px;}
-.socket input,.mode input{margin-right:-4px;}
-.submit{padding:5px;margin-top:5px;}
-.success{color:#58dc5c;}
-.error{color:#ff2d2d;}
-.info{color:#e700ea;}
-.network div{padding:5px;}
-.connect div{padding:5px;}
-.right{text-align:right;}
-.line{height:9px;border-bottom:1px solid #dedede;}
-#power_div{margin-top:10px;border-left:1px solid #000;border-bottom:1px solid #000;}
-#power_line{height:100px;position:relative;overflow:scroll;margin-top:-100px;}
-.power_pre{position:absolute;bottom:0;float:left;height:76px;width:0;border-left:1px solid #000;border-right:1px solid #000;}
-</style>
-
+    <meta http-equiv="content-type" content="text/html" charset="utf-8">
+    <meta content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" name="viewport">
+    <title>Welcom TC1</title>
+    <style type="text/css">
+    fieldset{margin-bottom:10px;border:#000 solid 1px;}
+    input,select,button{padding:5px;border:#777 solid 1px;}
+    button{background:none;border:1px #777 solid;}
+    button:disabled,select:disabled,input:disabled{background:#bfbfbf;}
+    td{padding:5px;}
+    .socket input,.mode input{margin-right:-4px;}
+    .submit{padding:5px;margin-top:5px;}
+    .success{color:#58dc5c;}
+    .error{color:#ff2d2d;}
+    .info{color:#e700ea;}
+    .network div{padding:5px;}
+    .connect div{padding:5px;}
+    .right{text-align:right;}
+    .line{height:9px;border-bottom:1px solid #dedede;}
+    #power_div{margin-top:10px;border-left:1px solid #000;border-bottom:1px solid #000;}
+    #power_line{height:100px;position:relative;overflow:scroll;margin-top:-100px;}
+    .power_pre{position:absolute;bottom:0;float:left;height:76px;width:0;border-left:1px solid #000;border-right:1px solid #000;}
+    </style>
 </head>
-
 <body>
-
 <fieldset class="socket">
     <legend>Power Controll</legend>
     <table id="socket_tb">
