该边框颜色属性指定边框的颜色。您可以尝试运行以下代码来实现 border-color 属性：
<html>
<head>
<style>
p.demo {
border:2px dashed;
border-color:#800000;
}
</style>
</head>
<body>
<p class = "demo">
David Beckham is a legend.
</p>
</body>
</html>