jQuery方式实现动画菜单

太过爱你忘了你带给我的痛 2022-01-27 12:07 223阅读 0赞

<!DOCTYPE html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <script src="js/jquery-3.4.1.min.js"></script>
        <title>三级菜单</title>
        <script>
    
            $(function () {
                $(".top-nav li").mousemove(function () {
                    $(this).children("ul").slideDown("1000");
                })
                $(".top-nav li").mouseleave(function () {
                    $(this).children("ul").slideUp("slow");
                })
            });
    
        </script>
        <style>
            a {
                color: #FFFF99;
                text-decoration: none;
            }
    
            .top-nav {
                font-size: 16px;
                font-weight: bold;
                /* 去小圆点 */
                list-style: none;
            }
    
            .top-nav li {
                float: left;
                /* 每个菜单之间有1像素间距 */
                margin-right: 1px;
            }
    
            /* 二级菜单 */
            .top-nav li ul {
                display: none;
                /* 去圆点 */
                list-style: none;
                padding: 0px;
                position: absolute;
                float: left;
    
            }
    
            .top-nav li a {
                line-height: 34px;
                text-decoration: none;
                background: #DDDDDD;
                color: #666666;
                display: block;
                width: 80px;
                text-align: center;
            }
    
            .top-nav li a:hover {
                background: url("images/slide-bg.PNG") repeat-x;
            }
    
            .top-nav li:hover ul {
                display: block;
    
            }
    
            .note {
                display: block;
                color: #3f240e;
                background: url("images/slide-bg.PNG") repeat-x;
            }
    
            .corner {
                display: block;
                height: 18px;
                background: url("images/corner.PNG") 27px 0 no-repeat;
    
            }
        </style>
    </head>
    
    <body>
        <div id="top">
            <ul class="top-nav">
                <li><a href="#"><span class="note">首页</span></a></li>
                <li><a href="#">课程大厅</a></li>
                <li><a href="#">学习中心</a>
                    <ul>
                        <span class="corner"></span>
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                        <li><a href="#">后端课程</a></li>
                        <li><a href="#">移动开发</a></li>
                    </ul>
                </li>
                <li><a href="#">经典案例</a></li>
                <li><a href="#">关于我们</a></li>
            </ul>
        </div>
    </body>
    
    </html>