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-<!DOCTYPE html>
-<html lang="en">
-
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" href="styles.css">
-    <title>Hight Cipher</title>
-</head>
-
-<body>
-    <div class="toggle-container">
-        <button class="toggle-btn">&#9776; OPTIONS </button>
-        <div class="dropdown">
-            <div class="dropdown-content">
-                <a href="ECBmode.html">ECB mode</a>
-                <a href="CBCmode.html">CBC mode</a>
-                <a href="index.html">HIGHT CLASSIC</a>
-                <a href="about.html">About &amp; Reference</a>
-            </div>
-        </div>
-    </div>
-
-    <header class="header">
-         <h1 class="header-title">CBC MODE</h1>
-    </header>
-
-    <div class="container">
-        <div class="left-panel">
-            <h2>Encryption</h2>
-            <div class="input-group">
-                <label for="plaintext">Plain Text (64-bit hexadecimal):</label>
-                <input type="text" id="encryptPlainText" placeholder="Enter plaintext...">
-            </div>
-            <div class="input-group">
-                <label for="encryptKey">Key (128-bit hexadecimal):</label>
-                <input type="text" id="encryptKey" placeholder="Enter key...">
-            </div>
-            <button class="action-button" onclick="start_enc()">Encrypt</button>
-            <div class="display" id="encryptionResult"></div>
-        </div>
-
-        <div class="separator"></div>
-
-        <div class="right-panel">
-            <h2>Decryption</h2>
-            <div class="input-group">
-                <label for="ciphertext">Cipher Text (64-bit hexadecimal):</label>
-                <input type="text" id="cipherText" placeholder="Enter ciphertext...">
-            </div>
-            <div class="input-group">
-                <label for="decryptKey">Key (128-bit hexadecimal):</label>
-                <input type="text" id="decryptKey" placeholder="Enter key...">
-            </div>
-            <button class="action-button" onclick="start_dec()">Decrypt</button>
-            <div class="display" id="decryptionResult"></div>
-        </div>
-    </div>
-    <div class="about">
-    <center><div class="info-box">
-        <p>
-          <strong>Hight CBC Cipher Information</strong><br>
-          - The user input for the key should be 128 bits and in hexadecimal format.<br>
-          - The user input for plaintext or ciphertext can be of any length, both greater than or less than 64 bits, and in hexadecimal format.<br>
-          - Padding scheme used for this block cipher is “OneAndZeroes Padding”.
-        </p>
-      
-        <p>
-          <strong>Hexadecimal Value Input</strong><br>
-          Hexadecimal values can be input with or without spaces between the characters.<br>
-        </p>
-      
-        <p>
-          <strong>Example:</strong><br>
-          Key: 00112233445566778899aabbccddeeff<br>
-          Plaintext: 00000000000000002e<br>
-          Ciphertext: 00f418aed94f03f2ca5b4e9b9258aac3
-        </p>
-      </div>
-      </center></div>
-   
-    
-    <script src="cbc.js"></script>
-</body>
-
-</html>
