1:

<div class="relative flex max-h-screen">
	<div class="fixed h-screen w-40 bg-amber-100 flex flex-col space-y-4 p-5 cursor-pointer">
		<div>home</div>
		<div>about</div>
		<div>courses</div>
		<div>contact us</div>
	</div>
	<div class="absolute left-40 p-10 text-justify">
			//main content
	</div>
</div>

2:

<div class="relative flex max-h-screen">
	<div class="fixed flex h-full w-40 cursor-pointer flex-col space-y-4 bg-amber-100 p-5 items-center justify-center">
		<nav class="">
			<div>home</div>
			<div>about</div>
			<div>courses</div>
			<div>contact us</div>
		</nav>
	</div>
	<main class="absolute left-40 p-10 text-justify">
		//main content
	</main>
</div>