Button.js

import styled from 'styled-components';

const Button = styled.button`
  background: white;
  color: palevioletred;
  font-size: 1em;
  margin: 1em;
  padding: 0.25em 1em;
  border: 2px solid palevioletred;
  border-radius: 3px;
`;

class ButtonComponent extends Component {
  render() {
    return (
      <div>
        <label>{this.props.label}</label>
        ... stable html
      </div>
    );
  }
}