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" />
    <meta name="author" content="Amirhossein Allami">
    <meta name="keywords" content="HTML, CSS, JavaScript, Algorithm, Binary Search Algorithm">
    <meta name="description" content="Binary Search Algorithm Tutorial">
    <title>Binary Search Algorithm - Created by Amirhossein Allami</title>
    <link rel="stylesheet" href="style/style.css" />
  </head>
  <body>
    <div class="container">
      <div class="titles-holder">
        <h2 class="header-h2">Binary Search Algorithm</h2>
      </div>
      <div class="guesses">
        <p class="text-guess"></p>
        <p class="text-guess2"></p>
      </div>
      <div class="buttons-div">
        <button class="btns" id="OK">OK</button>
        <button class="btns" id="Yes">Yes</button>
        <button class="btns" id="No">No</button>
        <button class="btns" id="Higher">Higher 👆</button>
        <button class="btns" id="Lower">Lower 👇</button>
        <button class="btns" id="Again">Restart</button>
      </div>
    </div>
    <script src="js/app.js"></script>
  </body>
</html>