double-hex.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="apple-touch-icon" sizes="180x180" href="images/apple-touch-icon.png">
    <link rel="icon" type="image/png" sizes="32x32" href="images/favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="16x16" href="imagesfavicon-16x16.png">

     <!--font awesome cdnjs link-->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css" 
    integrity="sha512-iBBXm8fW90+nuLcSKlbmrPcLa0OT92xO1BIsZ+ywDWZCvqsWgccV3gFoRBv0z+8dLJgyAHIhR35VZc2oM/gI1w==" crossorigin="anonymous" />

    <!--css style ref-->
    <link rel="stylesheet" href="./css/dhStyle.css">

    <title> Color Flipper </title>
</head>
<body>

        <nav>
          <div class="nav-center">
            <h4>Double Hex Color Flipper</h4>
            <ul class="nav-links">
              <li><a href="index.html">RGB</a>
              </li>
              <li><a href="hex.html">hex</a>
              </li>
              <li>
                <a href="double-hex.html">
                  <span class="current">Double-Hex</span> 
                </a>
              </li>
            </ul>
          </div>
        </nav>

        <main>
          <div class="split left">
            <div class="container-1">
              <h2>background color : <span class="color">#f1f5f8</span></h2>
              <button class="btn btn-hero" id="btn">Change Color</button>
            </div>
          </div>

          <div class="split right">
            <div class="container-2">
              <h2>background color : <span class="color-2">#f1f5f8</span></h2>
              <button class="btn btn-hero" id="btn-2">Change Color</button>
            </div>
          </div>
        </main>


    <!--js ref-->
    <script src="./js/dhex.js"></script>
</body>
</html>