css 四周边框角加粗效果

 


<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
    div {
        position: relative;
        left: 50px;
        top: 50px;
        margin: 10px;
        width: 500px;
        height: 100px;
        border: 1px solid #E3581D;
    }
    
    .border {
        position: absolute;
        padding: 5px;
        border-style: solid;
        border-color: #E3581D;
    }
    
    .row1 {
        border-width: 5px 0 0 5px;
        top: -5px;
        left: -5px;
        border-radius: 4px 0 0 0;
    }
    
    .row2 {
        border-width: 5px 5px 0 0;
        top: -5px;
        right: -5px;
    }
    
    .col1 {
        border-width: 0 0 5px 5px;
        bottom: -5px;
        left: -5px;
    }
    
    .col2 {
        border-width: 0 5px 5px 0;
        bottom: -5px;
        right: -5px;
    }
    </style>
</head>

<body>
    <div>
        <span class="border row1"></span>
        <span class="border row2"></span>
        <span class="border col1"></span>
        <span class="border col2"></span>
    </div>
</body>

</html>

 

posted @ 2019-03-19 16:24  abcByme  阅读(1689)  评论(0)    收藏  举报