百葉窗效果 html+css-有解無憂

效果：

實作：

1.定義父盒子，放入5張圖片：

 <ul>
        <li><img src="1.jpg" alt=""><div>Night</div></li>
        <li><img src="2.jpg" alt=""><div>Night</div></li>
        <li><img src="4.jpg" alt=""><div>Night</div></li>
        <li><img src="3.jpg" alt=""><div>Night</div></li>
        <li><img src="5.jpg" alt=""><div>Night</div></li>
    </ul>

2.給父親元素寬，高：

 ul{
            width: 550px;
            height: 300px;
            overflow: hidden;
            cursor: pointer;
        }

cursor: pointer;改變滑鼠樣式為小手，
3.li先默認寬110px：

 li{
            float: left;
            width: 110px;
            height: 300px;
            list-style: none;
            transition: all 1s;
            position: relative;
        }

  img{
            height: 100%;
            width: 450px;
            
        }

4.圖片下面那個文字通過定義偽類元素定位上去

 li::after{
            content: 'Night';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 450px;
            height: 30px;
            line-height: 30px;
            font-size: 16px;
            text-align: center;
            color: rgb(243, 230, 230);
            background-color: rgba(48, 46, 46,.5);
        }

5.滑鼠經過的li變450px寬，其它li顯示25px寬：

 ul:hover li{
            width: 25px;
        }
        ul li:hover{
            width: 450px;
        }

完整代碼：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body{
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-image: radial-gradient(white,black);
        }
        ul{
            width: 550px;
            height: 300px;
            overflow: hidden;
            cursor: pointer;
        }
        li{
            float: left;
            width: 110px;
            height: 300px;
            list-style: none;
            transition: all 1s;
            position: relative;
        }
       li::after{
            content: 'Night';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 450px;
            height: 30px;
            line-height: 30px;
            font-size: 16px;
            text-align: center;
            color: rgb(243, 230, 230);
            background-color: rgba(48, 46, 46,.5);
        }
        img{
            height: 100%;
            width: 450px;
            
        }
        ul:hover li{
            width: 25px;
        }
        ul li:hover{
            width: 450px;
        }
       
    </style>
</head>
<body>
    
    <ul>
        <li><img src="1.jpg" alt=""><div>Night</div></li>
        <li><img src="2.jpg" alt=""><div>Night</div></li>
        <li><img src="4.jpg" alt=""><div>Night</div></li>
        <li><img src="3.jpg" alt=""><div>Night</div></li>
        <li><img src="5.jpg" alt=""><div>Night</div></li>
    </ul>

</body>
</html>

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