index.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="stylesheet" href="Styles/main.css" />
    <title>Refresh For New Color</title>
  </head>
  <body>
    <!-- “Simplicity, clarity, singleness: These are the attributes that give our lives power and vividness and joy as they are also the marks of great art.” -->
    <div class="main-container">
      <div class="Random-Color"></div>
    </div>
    <script src="./JavaScript/app.js"></script>
  </body>
</html>