size 属性似乎不适用于 Twitter 引导 css 文件。我错过了什么吗?
<div class="control-group">
<div class="controls" >
<select class="span2" multiple="multiple" id="multiSelect" size="2">
<option>Assigned1</option>
<option>Assigned2</option>
<option>Assigned3</option>
<option>Assigned4</option>
<option>Assigned5</option>
</select>
</div>