<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Bootstrap历练实例：按钮组大小</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1.0" />
<link rel="stylesheet" href="bootstrap-3.3.5-dist/css/bootstrap.min.css" />
</head>
<body>
<div class="container">
<div class="btn-toolbar" role="toolbar">
<div class="btn-group btn-group-lg">
<button type="button" class="btn btn-default">按钮1</button>
<button type="button" class="btn btn-default">按钮2</button>
<button type="button" class="btn btn-default">按钮3</button>
</div>
<div class="btn-group btn-group-sm">
<button type="button" class="btn btn-default">按钮4</button>
<button type="button" class="btn btn-default">按钮5</button>
<button type="button" class="btn btn-default">按钮6</button>
</div>
<div class="btn-group btn-group-xs">
<button type="button" class="btn btn-default">按钮7</button>
<button type="button" class="btn btn-default">按钮8</button>
<button type="button" class="btn btn-default">按钮9</button>
</div>
</div>
</div>
<script src="jQuery/jquery-2.1.4.js"></script>
<script src="bootstrap-3.3.5-dist/js/bootstrap.min.js"></script>
</body>
</html>