javascript - 我如何在 Javascript 中添加/删除 css 类 div？

Question

我正在尝试创建一个 div，它在单击时会在 CSS 类之间发生变化，再次单击它会使 div 翻转回来。我试图在第二次单击 div 时删除该类，但似乎我没有以正确的方式进行。我如何实现这一目标？

    $('.snu').click(function () {
        $(this).find('.kort').addClass('snudd');
        });
  
     $('.snudd').click(function () {
        $(this).find('.kort').removeClass('snudd');
        });

    body {
    background: #ccc;
}
.snu {
    -webkit-perspective: 800;
    -moz-perspective: 800;
    width: 400px;
    height: 200px;
    position: relative;
    margin: 50px auto;
}
.snu .kort.snudd {
    -webkit-transform: rotatey(-180deg);
    -moz-transform: rotatey(-180deg);
}
.snu .kort {
    width: 100%;
    height: 100%;
    -webkit-transform-style: preserve-3d;
    -webkit-transition: 0.5s;
    -moz-transform-style: preserve-3d;
    -moz-transition: 0.5s;
}
.snu .kort .side {
    width: 100%;
    height: 100%;
    position: absolute;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    z-index: 2;
    font-family: Georgia;
    font-size: 1em;
    text-align: center;
    line-height: 200px;
}
.snu .kort .forrand {
    position: absolute;
    z-index: 1;
    background: black;
    color: white;
    cursor: pointer;
}
.snu .kort .bak {
    -webkit-transform: rotatey(-180deg);
    -moz-transform: rotatey(-180deg);
    background: blue;
    background: white;
    color: black;
    cursor: pointer;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<div class="snu">
    <div class="kort">
        <div class="side forrand">dette er forranddfsdfgsdfdsfgdsgfg</div>
        <div class="side bak">dett er  bakgdfgdfgdfg</div>
    </div>
</div>

Answer 1

使用下面的js

 $('.snu').click(function () {
    $(this).find('.kort').toggleClass('snudd');
    });