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  • 1px的实现

     
    <!DOCTYPE html>  
    <html>  
        <head>  
            <meta charset="UTF-8">  
            <title></title>  
            <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />  
            <style type="text/css">  
                .border{  
                    position: relative;  
                }  
                .border::after{  
                    display: block;  
                    position: absolute;  
                    left: 0;  
                    bottom: 0;  
                     100%;  
                    border-top:1px solid rgba(7,17,27,0.1);  
                    content: " ";  
                }  
                @meta (-webkit-min-device-pixel-ratio:1.5),(min-device-pixel-ratio:1.5){  
                    .border-1px::after{  
                        -webkit-transform: scaleY(0.7);  
                        transform:scaleY(0.7)  
                    }     
                }  
                @meta (-webkit-min-device-pixel-ratio:2),(min-device-pixel-ratio:2){  
                    .border-1px::after{  
                        -webkit-transform: scaleY(0.5);  
                        transform:scaleY(0.5)  
                    }     
                }  
            </style>  
        </head>  
        <body>  
            1px像素的实现  
            <div class="border border-1px">  
      
            </div>  
        </body>  
    </html>  

    利用meta判断设备像素是dpr的值来,缩放对应的比例

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  • 原文地址:https://www.cnblogs.com/lanyueff/p/7771783.html
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