图片扫描仪特效 html+css

效果:

这样,有抖动的:

无抖动的:

实现:

1.定义一个盒子:

<body>
    <div class="tu">div>
body>

2.基本样式,长宽背景图等等~

 .tu{
     
            width: 500px;
            height: 300px;
            background-image: url(8.jpg);
            background-size: 100% auto;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }

cursor: pointer;鼠标经过盒子样式为小手

3.用伪类元素做扫描线,基本样式:

 .tu::after{
     
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 500px;
            height: 35px;
            background-image: url(8.jpg);
            background-size: 100% auto;
            background-repeat: no-repeat;
            filter: sepia(100%); 
            opacity: 0;
           
        }

filter: sepia(100%); 图片发黄。
filter: invert(100%); 像X光底片。

4.实现扫描:

.tu:hover::after{
     
            opacity: 1;
            animation: move 1.8s linear infinite;
        }
        @keyframes move{
     
            0%{
     
                top: 0;
                background-position: 6px 0px; 
            }
            20%{
     
                top: 60px;
                background-position: -6px -60px; 
            }
            40%{
     
                top: 120px;
                background-position: 6px -120px; 
            }
            60%{
     
                top: 180px;
                background-position: -6px -180px; 
            }
            80%{
     
                top: 240px;
                background-position: 6px -240px; 
            }
            100%{
     
                top: 300px;
                background-position: -6px -300px; 
            }
        }

让background-position的y轴位移刚好等于top的距离,然后x轴为0的话就不抖,有数值就会抖动。

完整代码:


<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Documenttitle>
    <style>
        *{
      
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body{
      
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: rgb(0, 0, 0);
        }
        .tu{
      
            width: 500px;
            height: 300px;
            background-image: url(8.jpg);
            background-size: 100% auto;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
            cursor: pointer;
        }
        .tu::after{
      
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 500px;
            height: 20px;
            background-image: url(8.jpg);
            background-size: 100% auto;
            background-repeat: no-repeat;
            filter: invert(100%); 
            opacity: 0;
           
        }
        .tu:hover::after{
      
            opacity: 1;
            animation: move 1.8s linear infinite;
        }
        @keyframes move{
      
            0%{
      
                top: 0;
                background-position: 6px 0px; 
            }
            20%{
      
                top: 60px;
                background-position: -6px -60px; 
            }
            40%{
      
                top: 120px;
                background-position: 6px -120px; 
            }
            60%{
      
                top: 180px;
                background-position: -6px -180px; 
            }
            80%{
      
                top: 240px;
                background-position: 6px -240px; 
            }
            100%{
      
                top: 300px;
                background-position: -6px -300px; 
            }
        }
    style>
head>
<body>
    <div class="tu">div>
body>
html>

总结:

这是网上看到一外国博主的创意,然后自己也弄了一个,虽然效果是比较简单的,但也是挺好玩的~

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