Netlify Sample 2

Form.js

<div className={classes.paper}>
  <h2 id="transition-modal-title">メッセージを送る</h2>
  <form method="post">
    <input type="hidden" name="form-name" value="message" />
    <div style={{ display: 'none' }}>
      <input name="bot-field" />
    </div>
    <TextField
      id="message"
      label="Message"
      name="message"
      color="primaly"
      defaultValue="もふもふ"
    />
    <Button type="submit" variant="contained" color="primary">
      送信
    </Button>
  </form>
</div>