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我的下拉菜單包含一個按鈕和一個ul元素。點擊按鈕後,ul會出現在按鈕下方,我想將其更改爲顯示在左側。我試過幾件東西,比如在li元素上使用class =「dropdown-submenu pull-left」,或者在按鈕上使用數據放置,但沒有運氣。打開引導程序下拉菜單 - 左側切換
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown" title="Grid">
<span id="glyph" class="glyphicon glyphicon-list-alt" aria-hidden="true"></span>
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a style="cursor: pointer;" data-class="list-alt" onclick="changeGlyph(this)">Grid</a></li>
<li><a style="cursor: pointer;" data-class="globe" onclick="changeGlyph(this)">Map</a></li>
<li><a style="cursor: pointer;" data-class="tasks" onclick="changeGlyph(this)">Summary</a></li>
</ul>
</div>
https://jsfiddle.net/g7pe3e06/1/