* {
	margin:0;
	padding:0;
	box-sizing:border-box;
}
#tabs {
	width:800px;
	height:400px;
	position:relative;
	padding:20px;
	margin:0 auto;
}
#tabs > ul {
	list-style:none;
	overflow:hidden;
}
#tabs > ul > li {
	float:left;
	line-height:30px;
	width:80px;
	text-align:center;
	border:1px solid black;
	border-radius:5px;
	margin:5px;
	cursor:pointer;
	user-select:none;
}
#tabs > ul > li.active {
	background-color:greenyellow;
}
#tabs > div {
	position:absolute;
	padding:10px;
	border:1px solid black;
	box-shadow:3px 3px 3px #ccc;
	width:800px;
	height:320px;
	display:none;
}
#tabs > div.show {
	display:block;
}