css如何实现矩形四个边角加粗

小编给大家分享一下css如何实现矩形四个边角加粗，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

1、工具/原料

html
css

2、具体实现

css如何实现矩形四个边角加粗

效果图

html代码

<body>
    <h2 style="color: red">css实现矩形边角加粗</h2>
    <div class="main">
        <span></span>
        <span></span>
        <span></span>
        <span></span>
    </div>
</body>

css代码

body{
            display: flex;
            justify-content: center;
            flex-direction: column;
            align-items: center;
        }
        .main{
            position: relative;
            width: 400px;
            height: 200px;
            border: 1px solid red;
        }
        .main span:nth-child(1){
            position: absolute;
            left: -5px;
            top: -5px;
            padding: 15px;
            border-style: solid;
            border-color: rebeccapurple;
            border-width: 5px 0 0 5px;
        }
        .main span:nth-child(2){
            position: absolute;
            right: -5px;
            top: -5px;
            padding: 15px;
            border-style: solid;
            border-color: rebeccapurple;
            border-width: 5px 5px 0 0;
        }
        .main span:nth-child(3){
            position: absolute;
            right: -5px;
            bottom: -5px;
            padding: 15px;
            border-style: solid;
            border-color: rebeccapurple;
            border-width: 0 5px 5px 0;
        }
        .main span:nth-child(4){
            position: absolute;
            left: -5px;
            bottom: -5px;
            padding: 15px;
            border-style: solid;
            border-color: rebeccapurple;
            border-width: 0 0 5px 5px;
        }

以上是“css如何实现矩形四个边角加粗”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注行业资讯频道！

css如何实现矩形四个边角加粗

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