Javascript 水平居中
我有以下代码:Javascript 水平居中,javascript,css,angularjs,twitter-bootstrap,Javascript,Css,Angularjs,Twitter Bootstrap,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>
<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>
序列号。
-
-
style=“text align:center”
正在(水平)对齐div元素,但当选择下拉菜单时,我的列表项将在页面左侧对齐
- 如何将它们直接放置在下拉按钮下方
- 我如何在页面上垂直放置所有内容(可能是顶部的25%)
下拉滚动条上设置位置:相对
.dropdown-scroll {
position: relative;
}
并将下拉列表的位置设置为绝对值
:
.dropdown-menu {
position: absolute;
top: 0; //adjust according to need
left: 0; //adjust according to need
}
为ul