<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Bootstrap 实例 - 表单控件大小</title>
<link rel="stylesheet" href="//cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="//cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body> <form role="form">
<div class="form-group">
<input class="form-control input-lg" type="text" placeholder=".input-lg">
</div>
<div class="form-group">
<input class="form-control" type="text" placeholder="默认输入">
</div>
<div class="form-group">
<input class="form-control input-sm" type="text" placeholder=".input-sm">
</div>
<div class="form-group">
</div>
<div class="form-group">
<select class="form-control input-lg">
<option value="">.input-lg</option>
</select>
</div>
<div class="form-group">
<select class="form-control">
<option value="">默认选择</option>
</select>
</div>
<div class="form-group">
<select class="form-control input-sm">
<option value="">.input-sm</option>
</select>
</div> <div class="row">
<div class="col-lg-2">
<input type="text" class="form-control" placeholder=".col-lg-2">
</div>
<div class="col-lg-3">
<input type="text" class="form-control" placeholder=".col-lg-3">
</div>
<div class="col-lg-4">
<input type="text" class="form-control" placeholder=".col-lg-4">
</div>
</div>
</form> </body>
</html>