html练习2

实现下列图片的效果

代码：

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			* {
				margin: 0;
				padding: 0;
			}

			#menu {
				background-color: #0c0048;
				width: 100%;
				height: 50px;
				margin: auto;
			}

			.item {
				float: left;
				width: 100px;
				height: 50px;
				line-height: 50px;
				text-align: center;
				color: white;
				position: relative;
			}

			.item:hover {
				background-color: red;
				color: gold;

			}

			#container {
				width: 720px;
				margin: auto;
			}

			.down_menu {
				background-color: #cccccc;
				display: none;
				position: absolute;
			}

			.down_menu>div {
				color: black;
			}

			.item:hover>.down_menu {
				display: block;
				width: 100px;
				left: 0px;
				top: 50px;
			}
		</style>
	</head>
	<body>
		<div id="menu">
			<div id="container">
				<div class="item">游戏1
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
				<div class="item">游戏2
					<div class="down_menu">
						<div>游戏插件</div>
						<div>游戏聊天</div>
						<div>邀请好友</div>
						<div>自定义房间</div>
					</div>
				</div>
				<div class="item">游戏3
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
				<div class="item">游戏4
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
				<div class="item">游戏5
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
				<div class="item">游戏6
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
				<div class="item">游戏7
					<div class="down_menu">
						<div>游戏下载</div>
						<div>游戏交易</div>
						<div>游戏外挂</div>
						<div>游戏攻略</div>
					</div>
				</div>
			</div>
		</div>
	</body>
</html>

效果展示: