我有以下代码:
<div class="dropdown dropdown-scroll" style="text-align:center">
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown">
Serial No.<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1">
<li role="presentation">
<div class="input-group input-group-sm search-control">
<span class="input-group-addon">
<span class="glyphicon glyphicon-search"></span>
</span>
<input type="text" class="form-control" placeholder="Query" ng-model="query" />
</div>
</li>
<li role="presentation" ng-repeat='serial_no in serial_nos | filter:query'>
<a href="{{'{{serial_no.id}}'}}">{{'{{serial_no.id}}'}}</a>
</li>
</ul>
</div>
style="text-align:center"
正在对齐(水平)div元素,但是当选择下拉列表时,我的列表项会在页面的左侧对齐。
如何直接将它们放在下拉按钮下?
如何让页面上的所有内容垂直放置(可能是顶部的25%)?
答案 0 :(得分:0)
在position:relative
div上设置dropdown-scroll
:
.dropdown-scroll {
position: relative;
}
并将下拉列表的位置设置为absolute
:
.dropdown-menu {
position: absolute;
top: 0; //adjust according to need
left: 0; //adjust according to need
}