布局实现

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			.container{
				margin:100px auto;
				
			}
		</style>
		<link rel="stylesheet" type="text/css" href="lib/bootstrap/css/bootstrap.min.css"/>
		<script src="lib/bootstrap/js/jquery-1.11.1.min.js" type="text/javascript" charset="utf-8"></script>
		<script src="lib/bootstrap/js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>
		<div class="container">
			<form role="form">
				<div class="form-group">
					<label for="username">用户名:</label>
					<input type="text" name="username" id="username" class="form-control" placeholder="请输入用户名"/>
				</div>
				<div class="form-group">
					<label for="age">年龄:</label>
					<input type="text" name="age" id="age" class="form-control" placeholder="请输入年龄"/>
				</div>
				<div class="form-group">
					<input type="button" value="添加" class="btn btn-primary" />
					<input type="button" value="重置" class="btn btn-danger" />
				</div>
			</form>
			<hr />
			<table class="table table-bordered table-hover">
				<caption class="h1 text-info  text-center">用户信息表</caption>
				<tr class="text-danger">
					<th class="text-center">序号</th>
					<th class="text-center">姓名</th>
					<th class="text-center">年龄</th>
					<th class="text-center">操作</th>
				</tr>
				<tr class="text-center">
					<td>1</td>
					<td>bob</td>
					<td>36</td>
					<td>
						<button class="btn btn-primary btn-sm">修改</button>
						<button class="btn btn-primary btn-sm">删除</button>
					</td>
				</tr>
				<tr class="text-center">
					<td>2</td>
					<td>lili</td>
					<td>18</td>
					<td>
						<button class="btn btn-primary btn-sm">修改</button>
						<button class="btn btn-primary btn-sm">删除</button>
					</td>
				</tr>
				<tr>
					<td colspan="4" class="text-right">
						<button class="btn btn-danger">删除全部</button>
					</td>
				</tr>
				<tr>
					<td colspan="4" class="text-center text-muted">
						<p>暂无数据……</p>
					</td>
				</tr>
			</table>
		</div>
	</body>
</html>

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