bootstrap组件之按钮式下拉菜单小结

1、单按钮下拉菜单

基础的下拉菜单最外层是.dropdown的div

现在只需要改成.btnd-group的div就可以实现单按钮的下拉菜单

<div class="btn-group">
  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
    Action <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu">
    <li><a rel="nofollow noopener noreferrer" href="#">Action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Another action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Something else here</a></li>
    <li class="divider"></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Separated link</a></li>
  </ul>
</div>

2、分裂式按钮下拉菜单

分裂式按钮下拉菜单，就是按钮和图表分离开

<div class="btn-group">
  <button type="button" class="btn btn-danger">Action</button>
  <button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown">
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu">
    <li><a rel="nofollow noopener noreferrer" href="#">Action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Another action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Something else here</a></li>
    <li class="divider"></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Separated link</a></li>
  </ul>
</div>

3、尺寸

在button上添加.btn-lg.btn-sm.btn-xs可以控制按钮大小

<div class="btn-group">
 <button class="btn btn-default btn-lg dropdown-toggle" type="button" data-toggle="dropdown">
  Large button <span class="caret"></span>
 </button>
 <ul class="dropdown-menu" role="menu">
  ...
 </ul>
</div>

4、向上弹出式菜单

只需要在最外层的div上添加一个.dropup就可以实现向上弹出的菜单

<div class="btn-group dropup">
  <button type="button" class="btn btn-danger">Action</button>
  <button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown">
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu">
    <li><a rel="nofollow noopener noreferrer" href="#">Action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Another action</a></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Something else here</a></li>
    <li class="divider"></li>
    <li><a rel="nofollow noopener noreferrer" href="#">Separated link</a></li>
  </ul>
</div>

以上所述是小编给大家介绍的bootstrap组件之按钮式下拉菜单，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

以上就是bootstrap组件之按钮式下拉菜单小结。前尘如故地唯美白雪，芳时明月，空悲切，终离别。更多关于bootstrap组件之按钮式下拉菜单小结请关注haodaima.com其它相关文章！