css实现折扇效果


<!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">
    <title>折扇</title>
    <style>
        
        * {margin:0;padding:0;}

        .box {
            width: 600px;
            height: 230px;
            margin:50px auto;
            position: relative;
            border-bottom:2px solid #ccc;
        }
    
        .box div {
            width: 60px;
            height: 200px;
            transition: all 1s;
            transform-origin: center bottom;
            position: absolute;
            left: 40%;
            bottom:30px;
            box-shadow: 3px 3px 5px #333;
        }
        .box div:nth-child(1) {
            background: red;
        }

        .box:hover div:nth-child(2) {
            background:orange;
            transform:rotate(15deg);
        }
        .box:hover div:nth-child(3) {
            background:yellow;
            transform:rotate(30deg);
        }
        .box:hover div:nth-child(4) {
            background:green;
            transform:rotate(45deg);
        }
        .box:hover div:nth-child(5) {
            background:blue;
            transform:rotate(60deg);
        }
        .box:hover div:nth-child(6) {
            background:cyan;
            transform:rotate(75deg);
        }
        .box:hover div:nth-child(7) {
            background:purple;
            transform:rotate(90deg);
        }

        .box:hover div:nth-last-child(1) {
            background:orange;
            transform: rotate(-15deg);
        }
        .box:hover div:nth-last-child(2) {
            background:yellow;
            transform: rotate(-30deg);
        }
        .box:hover div:nth-last-child(3) {
            background:green;
            transform: rotate(-45deg);
        }
        .box:hover div:nth-last-child(4) {
            background:blue;
            transform: rotate(-60deg);
        }
        .box:hover div:nth-last-child(5) {
            background:cyan;
            transform: rotate(-75deg);
        }
        .box:hover div:nth-last-child(6) {
            background:purple;
            transform: rotate(-90deg);
        }
    </style>
</head>
<body>
    <div class="box">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
        <div>6</div>
        <div>7</div>
        <div>7</div>
        <div>6</div>
        <div>5</div>
        <div>4</div>
        <div>3</div>
        <div>2</div>
    </div>
</body>
</html>