Bootstrap 3.1.1 导航栏最大化输入在 3.2.0 中不再最大化

问题：如何在 Bootstrap 3.2.0 导航栏中获得最大化的搜索输入？

在 Bootstrap 3.1.1 中，我使用以下代码作为固定底部导航栏来显示最大化的搜索输入。

<nav class="navbar navbar-default navbar-fixed-bottom" role="seasrch">
    <div class="container">
        <form class="navbar-form">
            <div class="form-group">
                <div class="input-group input-group-sm">
                    <div class="input-group-btn">
                        <a href="#" id="new_term" class="btn btn-default" role="button"><span class="glyphicon glyphicon-leaf"></span>&nbsp;&nbsp;New</a>
                        <a href="/terms.php" class="btn btn-default" role="button"><span class="glyphicon glyphicon-tree-deciduous"></span>&nbsp;&nbsp;All</a>
                    </div>
                    <input type="input" class="form-control" name="search_bar_text" />
                    <div class="input-group-btn">
                        <button class="btn btn-default"><span class="glyphicon glyphicon-search"></span></button>
                    </div>
                </div>
            </div>
        </form>
    </div>
</nav>

And it looked like this:

My nav bar looks like this, after upgrading to Bootstrap 3.2.0:

只需添加到您的自定义 css 文件中：

.navbar-form .input-group {
    display: table;
}
.navbar-form .input-group .input-group-addon,
.navbar-form .input-group .input-group-btn {
    white-space: nowrap;
    width: 1%;
}
.navbar-form .input-group .form-control {
    width: 100%;
}