jquery不能实现对dom元素的伪类元素样式进行操作

本来只是想实现以下鼠标hover或点击实现导航条颜色滑动,于是想到能不能用伪类元素来实现颜色块滑动,好吧是我想多了,jquery不支持伪类元素的样式操作

.....
于是我还是只能多写一个盒子用来定位直接实现,用jquery就三行代码
代码如下:

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/jquery-3.5.1.js"></script>
    <style>
        * {
            padding: 0;
            margin: 0;
            -webkit-user-select: none;
        }

        .nav {
            width: 50rem;
            height: 5rem;
            position: relative;
            margin: 10rem auto;
            background-color: aqua;
        }

        .nav ul {
            display: flex;
            align-items: center;
            width: 100%;
            height: 4rem;
            background-color: azure;
        }

        .nav ul li {
            flex: 1;
            line-height: 4rem;
            text-align: center;
            background-color: blueviolet;

            list-style: none;
            cursor: pointer;
        }

        .nav .activediv {
            width: 20%;
            height: 1rem;
            position: absolute;
            left: 0rem;
            background-color: red;

            transition: all .5s;
        }
    </style>
</head>

<body>
    <div class="nav">
        <ul>
            <li>测试</li>
            <li>测试</li>
            <li>测试</li>
            <li>测试</li>
            <li>测试</li>
        </ul>
        <div class="activediv">

        </div>
    </div>
</body>
<script>
    $(function () {
        $("li").click(
            function () {
                let l_width = $(this).index() * 160;
                $(".activediv").css("left", (l_width / 16) + "rem")
            }
        );
    })
</script>

</html>
posted @ 2020-06-08 00:40  ReYiRFW  阅读(208)  评论(0编辑  收藏  举报