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
2、具体实现

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,欢迎关注天达云行业资讯频道!