* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
html,body{
	height: 100%;
}
.box {
	width: 100%;
	height: 100%;
	background-color: #f7b2bb;
}

.item {
	width: 50%;
	height: 100px;
	background-color: #1296db;
	text-align: center;
	line-height: 100px;
	color: #fff;
}