<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Bootstrap 输入框组的大小</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 style="padding:100px 100px 10px;">
<form action="" role="form" class="bs-example bs-example-form">
<div class="input-group input-group-lg">
<span class="input-group-addon">@</span>
<input type="text" placeholder="twitterhandle" class="form-control">
</div>
<br>
<div class="input-group input-group-sm">
<input type="text" class="form-control">
<span class="input-group-addon">0.0</span>
</div>
<br>
<div class="input-group">
<span class="input-group-addon">$</span>
<input type="text" class="form-control">
<span class="input-group-addon">.00</span>
</div>
</form>
</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>