如何突出显示单击的菜单

Question

我正在使用以下代码来显示垂直导航。它可以折叠和打开，我喜欢在用户单击子菜单时更改它，父菜单保持打开并且子菜单突出显示。所以用户知道他显示的是哪个页面。我正在使用 Meteor JS 和 bootstrap 3，我用谷歌搜索了它，我想我必须编写一些 javaScript。但我在 javascript 方面的经验很少。

<template name="sideMenu">
<div class="content">
    <div class="panel-group" id="accordion">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne"><span class="glyphicon glyphicon-home"></span>
                        Home
                    </a>
                </h4>
            </div>
            <div id="collapseOne" class="panel-collapse collapse in">
                <div class="panel-body">
                    <table class="table">
                        <tbody>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Articles
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    News
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Report
                                </a>
                            </td>
                        </tr>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
        <div class="panel panel-default">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <a data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
                        About us
                    </a>
                </h4>
            </div>
            <div id="collapseTwo" class="panel-collapse collapse">
                <div class="panel-body">
                    <table class="table">
                        <tbody>
                        <tr>
                            <td>
                                <a href="/mission"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Articles
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    News
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Report
                                </a>
                            </td>
                        </tr>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
        <div class="panel panel-default">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <a data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
                        Company
                    </a>
                </h4>
            </div>
            <div id="collapseThree" class="panel-collapse collapse">
                <div class="panel-body">
                    <table class="table">
                        <tbody>
                        <tr>
                            <td>
                                <a href="/mission"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Articles
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    News
                                </a>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <a href="#"><span class="glyphicon glyphicon-pencil text-primary"></span>
                                    Report
                                </a>
                            </td>
                        </tr>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>

fiddle

Answer 1

试试

$('.panel-body .table td').on('click', function() {
    $('.panel-body .table td').css('background', 'none');
    $(this).css('background', 'black');
});

Working Fiddle