body {
border: pink solid 1px;
width: 800px;
margin: 0 auto;
}

div div {
	border: green dotted 1px;
	width:70px;
	margin:5px 0auto;
	text-align: center
	display: lnline-block;
}

div div:first-child {
	background-color:pink;
}
div div:last-child {
	background-color:yellowgreen;
}
div div:nth-child(4) {
	background-color:blue;