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我一直在寻找bootstrap 4文档,因为我想切换一个div来收缩并从左向右展开,但我只找到了一个切换开关,并在顶部展开。Bootstrap 4从左至右依次展开
以下是我发现:
<div class="pos-f-t">
<div class="collapse" id="navbarToggleExternalContent">
<div class="bg-dark p-4">
<h4 class="text-white">Collapsed content</h4>
<span class="text-muted">Toggleable via the navbar brand.</span>
</div>
</div>
<nav class="navbar navbar-dark bg-dark">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarToggleExternalContent" aria-controls="navbarToggleExternalContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
</nav>
</div>
我怎样才能做到这一点左单击按钮时向右扩大?