html运行实例（css_outline-offset

代码示例：（标识：css_outline-offset_1）

<!DOCTYPE html>
<html>
<head>
<style>
p {
  margin: 30px;
  border: 1px solid black;
  outline: 1px solid red;
  outline-offset: 15px;
}
</style>
</head>
<body>

<h1>outline-offset 属性</h1>

<p>本段落在边框边缘外 15 像素处有一条轮廓线。</p>

</body>
</html>