heading {
	text-align: left;
	height: 32px;
	font-size: 24px;
	position: fixed; 
	top: 0;
	height: 64px;
}

sidebar {
	background-color: lightpink;
	font-size: 10px;
	width: 100px;
	height: 100%;
	float:left;
	position: sticky;
	top: 0;
	left: 0;
}

main {
	background-color: hotpink;
	float: leftt;
	width: 90%;
		
}

nav {
	background-color: chocolate;
	position: fixed;
	bottom: 0;
	float: none;
}

img {
	max-width: 80%;
}