sapper-template/app/App.html

<Nav path={props.path}/>

<main>
	<svelte:component this={Page} {...props}/>
</main>

<style>
	main {
		position: relative;
		max-width: 56em;
		background-color: white;
		padding: 2em;
		margin: 0 auto;
		box-sizing: border-box;
	}
</style>

<script>
	import Nav from '../components/Nav.html';

	export default {
		components: {
			Nav
		}
	};
</script>