Bootstrap - 浮动操作按钮菜单大小和阴影

Question

我正在使用Bootstrap 3.3和Bootstrap Material Design框架构建应用程序.我正在尝试制作一个浮动动作按钮,单击它时会打开.

为了做到这一点,我创建了这个Bootply,它具有以下代码:

<div class="btn-group dropup floating-action-button">
    <button type="button" class="btn btn-info btn-fab btn-raised dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons">save</i></button>
    <ul class="dropdown-menu dropdown-menu-right" style="min-width:0; background-color:transparent;">
        <li><a href="#" class="btn btn-danger btn-fab btn-raised"><i class="material-icons">clear</i></a></li>
    </ul>
</div>

按钮工作,但它看起来不正确.有两个问题让我疯狂.首先,弹出菜单不透明.有一种border我似乎无法摆脱的阴影.

其次,我无法使用Bootstrap Material Design框架页面的浮动操作按钮部分中显示的小版本按钮.我不确定我做错了什么.

Answer 1

因此,.dropdown-menu在引导CSS在默认情况下box-shadow和border,你必须将它以使它透明复位.

再加上你的Bootply,它没有应用Material Design Icons,因为你没有链接字体.

关于小图标,请添加.btn-group-sm到.btn-group

这是一个工作的SNIPPET,其中包含各种尺寸的示例.

.floating-action-button {
  position: relative;
  top: 100px;
  margin-left: 50px;
}
ul.dropdown-menu {
  box-shadow: none;
  border: 0;
  min-width:0;
  background:transparent
}

<!-- jQuery -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Material Design fonts -->
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto:300,400,500,700" type="text/css">
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<!-- Bootstrap -->
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<!-- Code -->
<div class="btn-group btn-group-lg dropup floating-action-button">
  <button type="button" class="btn btn-info btn-fab btn-raised dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons">save</i>
  </button>
  <ul class="dropdown-menu dropdown-menu-right">
    <li><a href="#" class="btn btn-danger btn-fab btn-raised"><i class="material-icons">clear</i></a>
    </li>
  </ul>
</div><div class="btn-group dropup floating-action-button">
  <button type="button" class="btn btn-info btn-fab btn-raised dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons">save</i>
  </button>
  <ul class="dropdown-menu dropdown-menu-right">
    <li><a href="#" class="btn btn-danger btn-fab btn-raised"><i class="material-icons">clear</i></a>
    </li>
  </ul>
</div>
<div class="btn-group btn-group-sm dropup floating-action-button">
  <button type="button" class="btn btn-info btn-fab btn-raised dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons">save</i>
  </button>
  <ul class="dropdown-menu dropdown-menu-right">
    <li><a href="#" class="btn btn-danger btn-fab btn-raised"><i class="material-icons">clear</i></a>
    </li>
  </ul>
</div>
<div class="btn-group btn-group-xs dropup floating-action-button">
  <button type="button" class="btn btn-info btn-fab btn-raised dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><i class="material-icons">save</i>
  </button>
  <ul class="dropdown-menu dropdown-menu-right">
    <li><a href="#" class="btn btn-danger btn-fab btn-raised"><i class="material-icons">clear</i></a>
    </li>
  </ul>
</div>