实现内圆角

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>内圆角 </title>
<style type="text/css">
    .meaning{
        background:tan;
        border-radius: .8em;
        padding:1em;
        box-shadow: 0 0 0 .6em #655;
        outline:.6em solid #655;
    }
</style>
</head>
<body>
    <div class="meaning">
        I have a nice idea
    </div>
<script type="text/javascript">

</script>
</body>
</html>
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原文地址：https://www.cnblogs.com/xingguozhiming/p/10612232.html