diff --git a/src/main/resources/templates/admin/main.html b/src/main/resources/templates/admin/main.html
index 3ed8509..f29b688 100644
--- a/src/main/resources/templates/admin/main.html
+++ b/src/main/resources/templates/admin/main.html
@@ -2,48 +2,176 @@
 <html lang="ko-kr">
 <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>GPT-ADMIN-MAIN</title>
+    <style>
+        * {
+            box-sizing: border-box;
+            margin: 0;
+            padding: 0;
+            font-family: Arial, sans-serif;
+        }
+
+        body {
+            background-color: #f5f5f5;
+            padding: 20px;
+        }
+
+        h1 {
+            text-align: center;
+            color: #333;
+            margin-bottom: 30px;
+        }
+
+        table {
+            width: 100%;
+            border-collapse: collapse;
+            margin-bottom: 20px;
+            background-color: #fff;
+            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+        }
+
+        th, td {
+            padding: 15px;
+            text-align: left;
+            border-bottom: 1px solid #ddd;
+        }
+
+        th {
+            background-color: #4a90e2;
+            color: white;
+        }
+
+        td a {
+            text-decoration: none;
+            color: #4a90e2;
+        }
+
+        td a:hover {
+            text-decoration: underline;
+        }
+
+        tr:nth-child(even) {
+            background-color: #f9f9f9;
+        }
+
+        div {
+            text-align: center;
+        }
+
+        a {
+            margin: 0 10px;
+            text-decoration: none;
+            color: #4a90e2;
+            font-weight: bold;
+        }
+
+        a:hover {
+            color: #357abd;
+        }
+
+        .pagination a {
+            margin: 0 5px;
+            padding: 8px 16px;
+            background-color: #f1f1f1;
+            border: 1px solid #ddd;
+            color: #4a90e2;
+            border-radius: 4px;
+        }
+
+        .pagination a:hover {
+            background-color: #4a90e2;
+            color: white;
+        }
+
+        form {
+            background-color: #fff;
+            padding: 30px;
+            border-radius: 8px;
+            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+            max-width: 400px;
+            margin: 20px auto;
+        }
+
+        input[type="text"], input[type="password"] {
+            width: 100%;
+            padding: 12px;
+            margin-bottom: 15px;
+            border: 1px solid #ccc;
+            border-radius: 4px;
+            font-size: 16px;
+        }
+
+        input[type="text"]:focus, input[type="password"]:focus {
+            border-color: #4a90e2;
+            outline: none;
+        }
+
+        button {
+            width: 100%;
+            padding: 12px;
+            background-color: #4a90e2;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            font-size: 18px;
+            cursor: pointer;
+        }
+
+        button:hover {
+            background-color: #357abd;
+        }
+
+        @media (max-width: 768px) {
+            table, th, td {
+                font-size: 14px;
+            }
+
+            form {
+                padding: 20px;
+            }
+
+            input[type="text"], input[type="password"], button {
+                font-size: 14px;
+            }
+        }
+    </style>
 </head>
 <body>
-<h1>GPT 관리자 페이지</h1>
-<div>
-    <table>
-        <tr>
-            <th>게시글 번호</th>
-            <th>제목</th>
-            <th>작성 시간</th>
-        </tr>
-
-        <tr th:each="history: ${histories}">
-            <td th:text="${history.id}"></td>
-            <td><a th:href="@{/history/{id}(id = ${history.id})}" th:text="${history.question}"/></td>
-            <td th:text="${history.talkedTime}"></td>
-        </tr>
-    </table>
-
-    <!-- 첫 페이지로 이동 -->
-    <a th:href="@{/admin/main(page=0)}">첫 페이지 </a>
-
-    <!-- 이전 페이지 이동 (# 붙을 시 이동하지 않음) -->
-<!--    <a th:href="${histories.first} ? '#' : @{/admin/main(page=${histories.number - 1})}"> 이전 페이지 </a>-->
-
-    <span th:each="page: ${#numbers.sequence(pageIndex.getStartPageNumber, pageIndex.getEndPageNumber)}">
-           <a th:href="@{/admin/main(page=${page})}" th:text="${page+1}"></a>
-    </span>
-
-    <!-- 다음 페이지 이동 (# 붙을 시 이동하지 않음) -->
-<!--    <a th:href="${histories.last} ? '#' : @{/admin/main(page=${histories.number + 1})}"> 다음 페이지</a>-->
-
-    <!-- 마지막 페이지로 이동 -->
-    <a th:href="@{/admin/main(page=0)}" th:if="${histories.totalPages == 0}">마지막 페이지</a>
-    <a th:href="@{/admin/main(page=${histories.totalPages - 1})}" th:if="${histories.totalPages != 0}">마지막 페이지</a>
-</div>
-
-<form method="post" th:action="@{/admin/join}" >
-    <input type="text" name="userId" placeholder="새로운 관리자 ID를 입력해주세요">
-    <input type="password" name="password" placeholder="새로운 관리자 비밀번호를 입력해주세요">
-    <button type="submit" th:text="회원가입"></button>
-</form>
-</div>
+    <h1>AIIA-GPT는 이러한 질문들을 받아냈습니다.</h1>
+    <div>
+        <table>
+            <thead>
+                <tr>
+                    <th>NO</th>
+                    <th>질문 내용</th>
+                    <th>질문한 시간</th>
+                </tr>
+            </thead>
+            <tbody>
+                <tr th:each="history: ${histories}">
+                    <td th:text="${history.id}"></td>
+                    <td><a th:href="@{/history/{id}(id = ${history.id})}" th:text="${history.question}"></a></td>
+                    <td th:text="${history.talkedTime}"></td>
+                </tr>
+            </tbody>
+        </table>
+
+        <!-- 페이지 네비게이션 -->
+        <div class="pagination">
+            <a th:href="@{/admin/main(page=0)}">첫 페이지</a>
+            <span th:each="page: ${#numbers.sequence(pageIndex.getStartPageNumber, pageIndex.getEndPageNumber)}">
+                <a th:href="@{/admin/main(page=${page})}" th:text="${page+1}"></a>
+            </span>
+            <a th:href="@{/admin/main(page=${histories.totalPages - 1})}">마지막 페이지</a>
+        </div>
+
+        <!-- 관리자 등록 폼 -->
+        <form method="post" th:action="@{/admin/join}">
+            <input type="text" name="userId" placeholder="새로운 관리자 ID를 입력해주세요" required>
+            <input type="password" name="password" placeholder="새로운 관리자 비밀번호를 입력해주세요" required>
+            <button type="submit">회원가입</button>
+        </form>
+    </div>
 </body>
-</html>
\ No newline at end of file
+</html>
