style.css

* {
	box-sizing: border-box;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
		Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

body {
	color: #555;
	background-color: gainsboro;
}

h1 {
	padding: 10px;
}

.wrapper {
	width: 100%;
	max-width: 980px;
	margin: 16px auto;
	padding: 5px;
}

.columns {
	display: flex;
	flex-flow: row wrap;
	margin: 5px 0;
}

.column {
	flex: 1;
	margin: 10px;
	background-color: white;
}

.column .image {
	width: 100%;
	height: 300px;
	background-position: center;
	background-size: cover;
}

.column h2,
.column p {
	padding: 0 16px 8px;
}

@media screen and (max-width: 992px) {
	.column {
		flex-basis: 40%;
		margin-bottom: 10px;
	}
}

@media screen and (max-width: 576px) {
	.column {
		flex-basis: 100%;
		margin-bottom: 10px;
	}
}