html运行实例（eg_csse_letter-spacing）-搜寻教程库

代码示例：（标识：eg_csse_letter-spacing）

<html>

<head>
<style type="text/css">
h1 {letter-spacing: -0.5em}
h4 {letter-spacing: 20px}
</style>
</head>

<body>
<h1>This is header 1</h1>
<h4>This is header 4</h4>
</body>

</html>