html – 创建带有输入组引导的内联表单

我正在尝试使用输入组创建一个简单的内联表单,以便在输入之前显示图标.据我所知,我正在关注文档,但表单不按预期显示. See this JSFiddle,它显示了问题.我假设 it should be displayed like this(只有当然的图标).这怎么可以解决？

我的代码：

<form class="form-inline" role="form">
    <div class="form-group">    
        <div class="input-group">                       
            <span class="input-group-addon"><i class="fa fa-envelope-o fa-fw"></i></span>
            <input type="email" class="form-control" placeholder="Enter email"/>
        </div>
    </div>

    <div class="form-group">
        <div class="input-group">
            <span class="input-group-addon"><i class="fa fa-key fa-fw"></i></span>
            <input type="password" class="form-control" placeholder="Choose password"/>
        </div>
    </div>                          

    <button type="submit" class="btn btn-default">Create account</button>
</form>

解决方法

我已经这样做了：

<form class="form-inline" role="form">
<div class="row">
    <div class="form-group col-sm-3">
        <div class="input-group"> <span class="input-group-addon"><i class="fa fa-envelope-o fa-fw"></i></span>

            <input type="email" class="form-control" placeholder="Enter email" />
        </div>
    </div>
    <div class="form-group col-sm-3">
        <div class="input-group"> <span class="input-group-addon"><i class="fa fa-key fa-fw"></i></span>

            <input type="password" class="form-control" placeholder="Choose password" />
        </div>
    </div>
    <button type="submit" class="btn btn-default">Create account</button>
</div>

http://jsfiddle.net/n5qmc/