如何设计react-facebook-login按钮的样式？

npm install react-facebook-login

yarn add react-facebook-login

import FacebookLogin from 'react-facebook-login';

render() {
  return (
    <FacebookLogin
      appId="YOUR_APP_ID"
      autoLoad={false}
      fields="name,email,picture"
      callback={this.responseFacebook}
      icon="fa-facebook"
      textButton="Login with Facebook"
      cssClass="facebook-login-button"
    />
  );
}

.facebook-login-button {
  background-color: #3b5998;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}