style.css

body {
    font-family: -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
    background-color: #0a0a0a;
    color: #e5e5e5;
}
h1 {
	font-size: 16px;
	margin-top: 0;
}

p {
	color: rgb(107, 114, 128);
	font-size: 15px;
	margin-bottom: 10px;
	margin-top: 5px;
}

.card {
	max-width: 620px;
	margin: 0 auto;
	padding: 16px;
	border: 1px solid lightgray;
	border-radius: 16px;
}

.card p:last-child {
	margin-bottom: 0;
}