css给div添加0.5px的边框

时间：2024-04-20 13:25:48

具体代码实现如下:

 <!DOCTYPE html>

 <html lang="en">

 <head>

     <meta charset="UTF-8">

     <title>border</title>

     <style>

         div{

             position: relative;

             width: 100%;

             background-color: #fff;

         }

         div:before{

             content: "";

             display: block;

             position: absolute;

             left: 0;

             right: 0;

             height: 1px;

             color: #d9d9d9;

             top: 0;

             border-top: 1px solid #d9d9d9;

             -webkit-transform-origin: 0 0;

             transform-origin: 0 0;

             -webkit-transform: scaleY(.5);

             transform: scaleY(.5);

         }

     </style>

 </head>

 <body>

     <div>

         border 0.5px

     </div>

 </body>

 </html>

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