<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>Bootstrap 按钮组</title>

<link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">  

</head>

<body>

<div class="container">

<div class="btn-group btn-group-lg">

<button class="btn btn-default">Button5</button>

<button class="btn btn-default">Button6</button>

</div>


<div class="btn-group btn-group-sm">

<button class="btn btn-default">Button5</button>

<button class="btn btn-default">Button6</button>

</div>


<div class="btn-group btn-group-xs">

<button class="btn btn-default">Button5</button>

<button class="btn btn-default">Button6</button>

</div>


<div class="btn-group-vertical btn-group-xs">

<button class="btn btn-default">Button5</button>

<button class="btn btn-default">Button6</button>

</div>

</div>

    <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>

  <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>

</body>

</html>

bootstrap44-按钮的大小_按钮