style.css

body {
    font-family: -apple-system, BlinkMacSystemFont, "Arial", sans-serif;
}

.announcement {
    padding: 1rem;
    border-radius: 0.5rem;
    background-color: #f8fafc;
    border-left: 4px solid #436bd9;
}

.announcement h3 {
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.announcement p {
    margin-bottom: 0.25rem;
    color: #64748b;
}
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;
}