Question

我有一个Bootstrap Navbar，我希望当我点击部署按钮时，这个CSS（按钮）会发生变化（我不喜欢CSS Button默认）。所以...我想接下来：

当我点击菜单（在Xtra小尺寸中 - 动态 - ）时，其CSS样式会发生变化（例如：背景颜色：红色）。

我怎么能这样做？什么是他的ClassNameCss？（例如：.navbar按钮[aria-expanded = true]）谢谢。

编辑：添加了我的NavBar代码：

<nav class="navbar navbar-default" role="navigation">

            <div class="navbar-header">
                <button type="button" class="navbar-toggle navbar-collapse-left" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="sr-only">Menú</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                {/*<a class="navbar-brand" href="/inicio"><img id="idFotoLogotipo" width="200px" src="./assets/images/cabecera_CE.jpg"/></a>*/}
                <a class="navbar-brand visible-xs-block" /*href="http://www.upct.es/"*/><span id="idTextoLogotipo">- INCIDENCIAS -</span></a>
            </div>

            <div class="collapse navbar-collapse">
                <ul class="nav navbar-nav navbar-left">
                    <MenuNavItem to='/administrador/inicio' index={true} /*menuItemActive="inicio"*/>Inicio</MenuNavItem>
                    <MenuNavItem to='/administrador/nueva_incidencia' /*menuItemActive="nueva_incidencia"*/>Nueva Incidencia</MenuNavItem>
                    <MenuNavItem to='/administrador/incidencias_recibidas' /*menuItemActive="incidencias_recibidas"*/>Incidencias Recibidas</MenuNavItem>
                    <MenuNavItem to='/administrador/informes' /*menuItemActive="informes"*/>Informes</MenuNavItem>
                </ul>

                <ul class="nav navbar-nav navbar-right">
                    <li class="divider visible-xs-block"></li>
                    {this.state.logged === true ? <p class="nav navbar-text hidden-xs"><span class="glyphicon glyphicon-user"></span> Bienvenido, {this.state.nombre} ({this.state.dni})</p> : ''} 
                    {this.state.logged === true ? <p class="nav navbar-text visible-xs-block"><span class="glyphicon glyphicon-user"></span> Bienvenido, {this.state.nombre}</p> : ''}
                    {this.state.logged === true ? <li class="salir"><a href="http://www.upct.es/"><span class="glyphicon glyphicon-off"></span> Salir</a></li> : <li class="entrar"><a href="http://www.upct.es/"><span class="glyphicon glyphicon-user"></span> Entrar</a></li>}
                </ul>
            </div>

        </nav>

Answer 1

如果你的意思是汉堡菜单＆＃39; （三行）下拉切换按钮显示在此处：

然后你应该能够用：

来定位

.navbar-toggle[aria-expanded="true"],
.navbar-toggle[aria-expanded="true"]:focus {
    background-color: red;
}

请注意，:focus样式是必需的，否则单击按钮时仍会显示默认的灰色背景颜色，因为此时按钮将具有焦点。

编辑：试试这个例子 - 我已经将样式加上.navbar-default作为前缀，这样可以确保样式有效。

＆＃13;

.navbar-default .navbar-toggle[aria-expanded="true"],
.navbar-default .navbar-toggle[aria-expanded="true"]:focus {
    background-color: red;
}

.navbar-default .navbar-collapse[aria-expanded="true"] {
    background-color: #428bca;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>

<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>

＆＃13;

更改CSS样式BurguerMenu NavBar

1 个答案: