jquery - 无法正确选择 JQuery

Question

我正在尝试在单击时将边框添加到 li 中。这是我的代码。

<div class="noselect round" id="teach_edit_navigation_holster">
<ul id="teach_edit_navigation">
    <li id="edittab_one" class="teach_nav_roundleft">
        <span>Item</span>
    </li>       
    <li class="" id="edittab_two">
        <span>Item</span>
    </li>   
    <li class="" id="edittab_three">
        <span>Documents</span>
    </li>   
    <li class="" id="edittab_four">
        <span>Item</span>
    </li>   
    <li class="" id="edittab_five">
        <span>Item</span>
    </li>   
    <li class="teach_nav_roundright" id="edittab_six">
        <span>Item</span>
    </li>                   
</ul>
</div>

这是 Jquery。我希望整个 li 框上有边框，而不是跨度。下面的代码在跨度上放置了一个边框。我不知道如何选择实际的 li。谢谢!

  $(document).ready(function () {
  $('#edittab_two_s, #edittab_three_s, #edittab_four_s, #edittab_five_s, #edittab_six_s').hide();
//  $('#teach_edit_navigation').find('#edittab_one').css({
//            "background-color": "black"   // set highlight to first item on page "home"
//        });
});

$('#teach_edit_navigation_holster li').click(function () {
    var Vinfotab = this.id + '_s',
        $this = $(this);
    $('.edittab:visible').fadeOut('fast', function () {
        $('#' + Vinfotab).fadeIn('fast');
        $('#teach_edit_navigation_holster li span').css({
            "border": "none" // reset all to default color
        });
        $this.find('span').css({
            "border-bottom": "1px solid black"   // set highlight to this element only
        });
    });
});

Answer 1

<li>由 $this 表示.这应该适合你:

$('#teach_edit_navigation_holster li').css({ // !!! remove span
    "border": "none" // reset all to default color
});
$this.css({ // !!! remove .find('span')
    "border-bottom": "1px solid black"   // set highlight to this element only
});