error and success

index.js

<div style={styles.flexRow}>
  <form onSubmit={handleSubscribe}>
    <input
      style={styles.input}
      onChange={(e) => setEmail(e.target.value)}
      value={email}
      type="email"
      placeholder="Type your email"
    />
    <button type="submit" style={styles.btn}>
      Subscribe
    </button>
  </form>
</div>
<div>
  <p style={styles.error}>{errorMessage}</p>
  <p style={styles.success}>{successMessage}</p>
</div>