侧边栏动画

2019-03-25 本文已影响0人吴宪峰

image.png

html

<!DOCTYPE html>
<html>

<head>
    <title>watch</title>
    <link rel="stylesheet" href="./css/index.css">
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
</head>

<body>
    <div class="sidebar">
        <ul>
            <li><a href="#">Home</a></li>
            <li><a href="#">About</a></li>
            <li><a href="#">Service</a></li>
            <li><a href="#">Project</a></li>
            <li><a href="#">Conatct</a></li>
        </ul>
        <button class="sidebarBtn">
            <span></span>
        </button>
        <script type="text/javascript">
            $(document).ready(function() {
                $('.sidebarBtn').click(function() {
                    $('.sidebar').toggleClass('active');
                    $('.sidebarBtn').toggleClass('toggle');
                })
            })
        </script>
    </div>
</body>

</html>

css

body {
    margin: 0;
    padding: 0;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    background: #fff;
    overflow: hidden;
}

.sidebar {
    position: fixed;
    top: 0;
    left: -250px;
    background: #262626;
    width: 250px;
    height: 100%;
    transition: .3s;
}

.active {
    left: 0;
}

ul {
    margin: 0;
    padding: 20px 0;
}

ul li {
    list-style: none;
}

ul li a {
    padding: 10px 20px;
    color: #fff;
    display: block;
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 0, 0, 2);
}

.sidebarBtn {
    position: absolute;
    top: 0;
    right: -50px;
    width: 50px;
    height: 50px;
    box-sizing: border-box;
    cursor: pointer;
    background: #f5f5f5;
    border: none;
    outline: none;
}

.sidebar span {
    display: block;
    width: 35px;
    height: 3px;
    background: #262626;
    position: absolute;
    top: 24px;
    transition: .3s;
}

.sidebar span:before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: #262626;
    transition: .3s;
}

.sidebar span:after {
    content: '';
    position: absolute;
    top: 10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: #262626;
    transition: .3s;
}

.sidebarBtn.toggle span {
    background: transparent;
}

.sidebarBtn.toggle span:before {
    top: 0;
    transform: rotate(45deg);
}

.sidebarBtn.toggle span:after {
    top: 0;
    transform: rotate(-45deg);
}

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