import { createRoot } from 'react-dom/client';
import styled from 'styled-components';
const MyHeader = styled.h1`
padding: 10px 20px;
background-color: #007bff;
color: white;
`;
function App() {
return (
<>
<MyHeader>Welcome!</MyHeader>
</>
);
}
createRoot(document.getElementById('root')).render(
<App />
);
<!doctype html>
<html lang="en">
<body>
<div id="root"></div>
<script type="module" src="/src/main.jsx"></script>
</body>
</html>