section {
	padding: 20px;
	width: 100%;
	margin: 40px auto;
}

section ul {
	display: flex;
	margin-bottom: 10px;
}

section ul li {
	list-style: none;
	background: #eee;
	padding: 8px 20px;
	margin: 5px;
	letter-spacing: 1px;
	cursor: pointer;
}

section ul li.active {
	background: #c33333;
	color: #fff;
}

.product {
	display: flex;
	flex-wrap: wrap;
}

.product .itemBox {
	position: relative;
	width: 300px;
	height: 300px;
	margin-top: 60px;
}


/*Media query*/
@media screen and (max-width: 768px) {
	section ul {
	  display: block;
	}
  }