css3 eyecatch

body{
	background: slategray;
}

#eyecatch{
	background: url('eyecatch.jpg') no-repeat;
	background-size: cover;
	background-position: 50% 20%;
	height: 100px;
}

.container {
	width: 500px;
	margin: 0 auto;
	/*background: pink;*/
}

header {
	background: tomato;
}

ul#menu {
	padding: 0;
	margin: 0;
	list-style-type: none;
	font-size: 0;
}

ul#menu > li{
	display:inline-block;
	width: 80px;
	height: 40px;
	background: orange;
	font-size: 16px;
	text-decoration: none;
	text-align: center;
	line-height: 40px;
}
ul#menu > li > a:hover{
	opacity: 0.5;
	transition: 0.8s;
}
main .product {
	position: relative;
	display: inline-block;	
}
main .price {
	position: absolute;
	/*top: 0;
	right: 0;*/
	top: -5px;
	right: - 5px;
	font-size: 10px;
	padding: 4px;
	font-weight: bold;
	backgroundf: white;
}

main {
	background: skyblue;
}
#left {
	background: limegreen;
	float:left;
	width: 100px;
}
#center {
	background: seagreen;
	margin: 0 100px;
}
#right {
	background: lightgreen;
	float: right;
	width: 100px;
}

.clearfix::after{
	content: '';
	display:block;
	clear: both;
}
.clear {
	overflow: hidden;
}
footer {
	clear: both;
	background: slategray;
}