Untitled

<!DOCTYPE html>
<html>
<head>
<title>Slider</title>
</head>
<body>
    <div class="container">
      <div class="block blockRed"> </div>
      <div class="block blockGreen"> </div>
      <div class="block blockBlue"> </div>
      <div class="block blockBrown"> </div>
      <div class="block blockYellow"> </div>
    </div>
      <div class="button-group">
        <button id="left" class="btn">⇦</button>
        <button id="right" class="btn">⇨</button>
      </div>
</body>
</html>