* { box-sizing: border-box; }

body{
	margin:0;
	padding:0;
	font-family: helvetica, Arial, sans-serif;
	font-size: 0;
}

.header{
	font-size: 40px;
	position: fixed;
	width: 100%;
	padding: 25px;
	top: 0;
	left: 0;
}

.cart{
	position: absolute;
	top: 25px;
	right: 25px;
}

.content{
	width: 987px;
	margin: 96px auto 0 auto;
}

.item{
	display: inline-block;
	width: 276px;
	font-size: 40px;
	margin: 0 25px 50px 25px;
	cursor: pointer;
}

.item img {
	width: 100%;
	margin-bottom: 10px;
}

.item:hover .add-button {
	border-bottom: 2px solid #000;
}