diff --git a/option/option.html b/option/option.html
index 17c6fe9..9963439 100644
--- a/option/option.html
+++ b/option/option.html
@@ -2,148 +2,148 @@
 <html lang="zh-CN">
 
 <head>
-	<title>electsys++ 设置</title>
-	<meta charset="UTF-8">
-	<meta name="viewport" content="width=device-width, initial-scale=1">
-	<link href="http://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
-	<link href="http://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
-	<link href="http://cdn.bootcss.com/awesome-bootstrap-checkbox/0.3.7/awesome-bootstrap-checkbox.min.css" rel="stylesheet">
+    <title>electsys++ 设置</title>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link href="http://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
+    <link href="http://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
+    <link href="http://cdn.bootcss.com/awesome-bootstrap-checkbox/0.3.7/awesome-bootstrap-checkbox.min.css" rel="stylesheet">
 
-	<style>
-		.container {
-			width: 500px;
-		}
-		
-		.options {
-			margin-left: 20px;
-		}
-		
-		.jumbotron {
-			margin-top: 30px;
-			padding-top: 30px;
-			padding-bottom: 30px;
-			text-align: center;
-		}
+    <style>
+        .container {
+            width: 500px;
+        }
+        
+        .options {
+            margin-left: 20px;
+        }
+        
+        .jumbotron {
+            margin-top: 30px;
+            padding-top: 30px;
+            padding-bottom: 30px;
+            text-align: center;
+        }
 
-		.option-input {
-		    width: 130px !important;
-		    margin-right: 15px;
-		}
+        .option-input {
+            width: 130px !important;
+            margin-right: 15px;
+        }
 
-		.option-button {
-			margin-right: 15px;
-		}
+        .option-button {
+            margin-right: 15px;
+        }
 
-		.inner-option {
-			padding-left: 24px;
-		}
+        .inner-option {
+            padding-left: 24px;
+        }
 
-		.inner-checkbox {
-			padding-left: 24px;
-		}
-	</style>
+        .inner-checkbox {
+            padding-left: 24px;
+        }
+    </style>
 </head>
 
 <body>
-	<div class="container">
-		<div class="jumbotron">
-			<h1>electsys++</h1>
-			<p>上海交通大学选课网优化工具</p>
-		</div>
+    <div class="container">
+        <div class="jumbotron">
+            <h1>electsys++</h1>
+            <p>上海交通大学选课网优化工具</p>
+        </div>
 
-		<h2>选课</h2>
+        <h2>选课</h2>
 
-		<div class="container options">
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox1-1" type="checkbox" data-key="optimize_lesson" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox1-1">启用优化</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox1-2" type="checkbox" data-key="optimize_lesson_query_cache" data-checked="true" data-unchecked="false"
-						data-default="true">
-					<label for="checkbox1-2">启用课程查询缓存</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox1-3" type="checkbox" data-key="malltable_slide" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox1-3">启用小课表</label>
-				</div>
-			</div>
-		</div>
+        <div class="container options">
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox1-1" type="checkbox" data-key="optimize_lesson" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox1-1">启用优化</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox1-2" type="checkbox" data-key="optimize_lesson_query_cache" data-checked="true" data-unchecked="false"
+                        data-default="true">
+                    <label for="checkbox1-2">启用课程查询缓存</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox1-3" type="checkbox" data-key="malltable_slide" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox1-3">启用小课表</label>
+                </div>
+            </div>
+        </div>
 
-		<h2>优化</h2>
+        <h2>优化</h2>
 
-		<div class="container options">
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-1" type="checkbox" data-key="enable_gpa_query" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox2-1">启用绩点查询</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-3" type="checkbox" data-key="optimize_score" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox2-3">优化成绩查询</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-4" type="checkbox" data-key="optimize_core_course" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox2-4">优化核心课程成绩</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-5" type="checkbox" data-key="optimize_edulist" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox2-5">优化修业查看</label>
-				</div>
-			</div>
+        <div class="container options">
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox2-1" type="checkbox" data-key="enable_gpa_query" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox2-1">启用绩点查询</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox2-3" type="checkbox" data-key="optimize_score" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox2-3">优化成绩查询</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox2-4" type="checkbox" data-key="optimize_core_course" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox2-4">优化核心课程成绩</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox2-5" type="checkbox" data-key="optimize_edulist" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox2-5">优化修业查看</label>
+                </div>
+            </div>
+            <div class="form-group">
+                <div class="checkbox">
+                    <input id="checkbox2-6" type="checkbox" data-key="show_ad" data-checked="true" data-unchecked="false" data-default="true">
+                    <label for="checkbox2-6">显示推荐内容</label>
+                </div>
+            </div>
             <div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-6" type="checkbox" data-key="show_ad" data-checked="true" data-unchecked="false" data-default="true">
-					<label for="checkbox2-6">显示推荐内容</label>
-				</div>
-			</div>
-			<div class="form-group">
-				<div class="checkbox">
-					<input id="checkbox2-7" type="checkbox" data-key="recognize_captcha" data-checked="true" data-unchecked="false" data-default="false">
-					<label for="checkbox2-7">识别 jAccount 验证码</label>
-				</div>
-			</div>
-			<div class="form-group inner-option">
-				<div class="checkbox">
-					<input id="checkbox2-8" type="checkbox" data-key="auto_login" data-checked="true" data-unchecked="false" data-default="false" data-enabled-key="recognize_captcha">
-					<label for="checkbox2-8">快速登录</label>
-				</div>
-				<div class="form-group form-inline inner-checkbox">
-					<input type="text" class="form-control option-input" id="input-jaccount-username" placeholder="jAccount 账号" data-key="jaccount_username" data-default="&quot;&quot;" data-enabled-key="auto_login"  disabled>
-					<input type="password" class="form-control option-input" id="input-jaccount-password" placeholder="jAccount 密码" data-key="jaccount_password" data-default="&quot;&quot;" data-enabled-key="auto_login" disabled>
-        			<button id="jaccount-btn" class="btn btn-primary option-button" data-save-keys="jaccount_username,jaccount_password" data-success-msg="#jaccount-success-msg" data-enabled-key="auto_login">保存</button>
-        			<span id="jaccount-success-msg" class="text-success fade">已保存</span>
-				</div>
-			</div>
-		</div>
+                <div class="checkbox">
+                    <input id="checkbox2-7" type="checkbox" data-key="recognize_captcha" data-checked="true" data-unchecked="false" data-default="false">
+                    <label for="checkbox2-7">识别 jAccount 验证码</label>
+                </div>
+            </div>
+            <div class="form-group inner-option">
+                <div class="checkbox">
+                    <input id="checkbox2-8" type="checkbox" data-key="auto_login" data-checked="true" data-unchecked="false" data-default="false" data-enabled-key="recognize_captcha">
+                    <label for="checkbox2-8">快速登录</label>
+                </div>
+                <div class="form-group form-inline inner-checkbox">
+                    <input type="text" class="form-control option-input" id="input-jaccount-username" placeholder="jAccount 账号" data-key="jaccount_username" data-default="&quot;&quot;" data-enabled-key="auto_login"  disabled>
+                    <input type="password" class="form-control option-input" id="input-jaccount-password" placeholder="jAccount 密码" data-key="jaccount_password" data-default="&quot;&quot;" data-enabled-key="auto_login" disabled>
+                    <button id="jaccount-btn" class="btn btn-primary option-button" data-save-keys="jaccount_username,jaccount_password" data-success-msg="#jaccount-success-msg" data-enabled-key="auto_login">保存</button>
+                    <span id="jaccount-success-msg" class="text-success fade">已保存</span>
+                </div>
+            </div>
+        </div>
         <br>
-    		<button id="reset-btn" class="btn btn-info">恢复默认值</button>
-	</div>
+            <button id="reset-btn" class="btn btn-info">恢复默认值</button>
+    </div>
 
-	<div class="footer">
-		<hr style="width: 40%">
-		<div class="container">
-			<p class="text-muted text-center">
-				electsys++ <span id="ext-version"></span> |
-				<a href="https://github.com/laohyx/electsys" target="_blank">electsys++ Project</a>
-			</p>
-		</div>
-	</div>
+    <div class="footer">
+        <hr style="width: 40%">
+        <div class="container">
+            <p class="text-muted text-center">
+                electsys++ <span id="ext-version"></span> |
+                <a href="https://github.com/laohyx/electsys" target="_blank">electsys++ Project</a>
+            </p>
+        </div>
+    </div>
 
-	<script src="../content_script/library/jquery-3.1.1.min.js"></script>
-	<script src="../content_script/core/option.js"></script>
-	<script src="../library/option.js"></script>
+    <script src="../content_script/library/jquery-3.1.1.min.js"></script>
+    <script src="../content_script/core/option.js"></script>
+    <script src="../library/option.js"></script>
 </body>
 
 </html>
\ No newline at end of file
