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使用CSS实现手风琴效果

code

code

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

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>手风琴</title>
    <style>
        * {
            padding: 0;
            margin: 0;
            box-sizing: border-box;
            font-family: 'Space Mono', monospace;
        }

        body {
            display: flex;
            justify-content: center;
        }

        .wrapper{
            width: 600px;
            margin: 10vh auto;
        }

        h1{
            margin-bottom: 20px;
            text-align:center;
        }

        input{
            display: none;
        }

        label{
            display: flex;
            width: 100%;
            height: 50px;
            cursor: pointer;
            border: 3px solid #3E474F;
            user-select: none;
        }

        label div:first-child{
            width: 100%;
            line-height: 45px;
            margin-left: 10px;
            font-size: 1.2em;
        }

        .cross{
            margin-right: 15px;
            margin-top: 3px;
        }

        .cross::before,
        .cross::after{
            content: '';
            border-top: 2px solid #3E474F;
            width: 15px;
            display: block;
            margin-top: 18px;
            transition: .3s;
        }

        .cross::after{
            transform: rotate(90deg);
            margin-top: -2px;
        }

        input:checked~label .cross::before{
            transform: rotate(180deg);
        }

        input:checked~label .cross::after{
            transform: rotate(0deg);
        }

        .content{
            box-sizing: border-box;
            font-size: 0.9em;
            margin: 10px 10px;
            max-height: 0px;
            overflow: hidden;
            transition: max-height,.5s;
        }

        input:checked~.content{
            max-height: 400px;
            transition: max-height,1s;
        }

        .SecondaryMenus{
            margin-top: 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height,.5s;
        }

        .SecondaryMenus label{
            border: none;
            box-shadow: none;
            margin: 0;
        }

        input:checked~.SecondaryMenus{
            max-height: 400px;
            border-bottom: 2px solid #3E474F;
            transition: 1s;
        }
    </style>
</head>

<body>
<div class="wrapper">
    <h1>Accordion secndary menu</h1>
    <div class="wrap-1">
        <input type="radio" id="tab-1" name="tabs">
        <label for="tab-1">
            <div>First level menu - one</div>
            <div class="cross"></div>
        </label>
        <div class="content">One kind of loneliness is that when you close your eyes, you can recall the
            temperature, conversation, action, and details of the story. When you open your eyes, you feel that they
            never happened. It is because life has a lot of passing, no intersection of loneliness, so we have to
            start each time, good farewell.</div>
    </div>

    <div class="wrap-2">
        <input type="radio" id="tab-2" name="tabs">
        <label for="tab-2">
            <div>First level menu - two</div>
            <div class="cross"></div>
        </label>
        <div class="content">Youth, is a gorgeous dream, there will always be empty one day, but no matter how
            lonely, thank you have accompanied me that moved.</div>
    </div>

    <div class="wrap-3">
        <input type="radio" id="tab-3" name="tabs">
        <label for="tab-3">
            <div>First level menu - three</div>
            <div class="cross"></div>
        </label>
        <div class="SecondaryMenus">
            <div class="SecondaryMenu-wrap">
                <input type="radio" id="SecondaryMenu-1" name="SecondaryMenu">
                <label for="SecondaryMenu-1">
                    <div>SecondaryMenu - one</div>
                    <div class="cross"></div>
                </label>
                <div class="content">In infinite time, limited life, we are chasing the sun and the moon, chasing
                    the dream. Looking
                    back, we are far away from that pure dream.</div>
            </div>

            <div class="SecondaryMenu-wrap">
                <input type="radio" id="SecondaryMenu-2" name="SecondaryMenu">
                <label for="SecondaryMenu-2">
                    <div>SecondaryMenu - two</div>
                    <div class="cross"></div>
                </label>
                <div class="content">We, one day, will become me, because the happiness ahead will let you go, and
                    the footprints you
                    left are the basis for my stay.</div>
            </div>
        </div>
    </div>
</div>
</body>

</html>
## END
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本文作者：
 文章标题：CSS实现手风琴效果
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最后修改：2021 年 08 月 28 日 05 : 11 PM
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