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【前端笔记】简单的手风琴二级菜单

作者:超级管理员 时间:2021-11-16 阅读数:240人阅读
简单的手风琴二级菜单

直接上源码

<!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>简单的手风琴二级菜单</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>

over~~

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