body {
	font-family: system-ui, sans-serif;
	display: grid;
	place-content: center;
	min-height: 100vh;
	margin: 0;
	text-align: center;
	background: url("https://media.istockphoto.com/id/1313890871/vector/green-mountain-valley-rural-scene-landscape-vector.jpg?s=612x612&w=0&k=20&c=I_1dHxZ3exbAuUq3u_B_xEVMf1RZd6Kxa0bqAXyWduc=") no-repeat center center fixed;
	background-size: cover;
	margin: 0;
}
button {
	padding: 0.6rem 1.2rem;
	font-size: 1rem;
	border-radius: 8px;
	border: 0;
	background: #228B22;
	color: white;
	cursor: pointer;
}
img {
	width: 300px;
	height: auto;
	display: block;
	margin-left: auto;
	margin-right: auto;
}