index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>API CAT</title>
</head>

<body>
    <h1>InstantCAT App</h1>
    <span id="error"></span>
    <section id="gatosAleatorios">
        <h2>Gatitos aleatorios</h2>
        <article>
            <img id="img1" width="150" alt="Foto de gatito aleatorio">
            <button id="btn1">Guardar en favoritos</button>
        </article>
        <article>
            <img id="img2" width="150" alt="Foto de gatito aleatorio">
            <button id="btn2">Guardar en favoritos</button>
        </article>
        <button onclick="generarGatosRandom()">Recargar</button>
    </section>

    <section id="gatosFavoritos">
        <h2>Gatitos favoritos</h2>

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

</html>