使用CSS实现百叶窗效果示例代码

效果：

实现：

1.定义父盒子，放入5张图片：

 ul
        liimg src=1.jpg alt=divNight/div/li
        liimg src=2.jpg alt=divNight/div/li
        liimg src=4.jpg alt=divNight/div/li
        liimg src=3.jpg alt=divNight/div/li
        liimg src=5.jpg alt=divNight/div/li
    /ul

2.给父亲元素宽，高：

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

3.li先默认宽110px：

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

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

4.图片下面那个文字通过定义伪类元素定位上去

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

5.鼠标经过的li变450px宽，其它li显示25px宽：

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

完整代码：

!DOCTYPE html
html lang=en
head
    meta charset=UTF-8
    meta name=viewport content=width=device-width, initial-scale=1.0
    titleDocument/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;
            
            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
        liimg src=1.jpg alt=divNight/div/li
        liimg src=2.jpg alt=divNight/div/li
        liimg src=4.jpg alt=divNight/div/li
        liimg src=3.jpg alt=divNight/div/li
        liimg src=5.jpg alt=divNight/div/li
    /ul

/body
/html