index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="styles.css">
</head>
<body>

<input type="text" id="pokemonName" placeholder="Enter Pokemon name">
<button onclick="fetchData()">Fetch Pokemon</button><br>

<img src="" alt="Pokemon Sprite" id="pokemonSprite" style="display: none">

<script src="main.js"></script>
</body>
</html>