import React, {useState} from "react";
import ReactDOM from "react-dom";
import styled from 'styled-components'

function App() {

  const Button = styled.button`
  background: 'black';
  color: #fff;
  border: 0;
  padding: 7px 10px;`;

  return (
    <div className="App">
      <Button> Click me! </Button>
    </div>
  );
}

const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);