body {
	font-size: 16px;
}

.row > div > div, .first-level > div, .second-level > div {
	background: #ccc;
	min-height: 30px;
	margin-bottom: 10px;
}

.first-level > div {
	background: #868686 !important;
	margin: 0.7rem 0;
}

.second-level > div {
	background: #606060 !important;
	margin: 0.7rem 0;
}

.row > div .height-alignment {
	background: #ccc;
	min-height: 120px;
}