letter-spacing: normal | length | initial | inherit;
<!DOCTYPE html>
<html>
<head>
<title>CSS letter-spacing Property</title>
</head>
<body style = "text-align: center;">
<h1 style = "color: blue;">
Welcome to the bianchenghao6.com
</h1>
<h2>
This is an example of CSS letter-spacing Property
</h2>
<p style= "letter-spacing: normal;">
This paragraph has letter-spacing: normal;
</p>
<p style= "letter-spacing: 7px;">
This paragraph has letter-spacing: 7px;
</p>
<p style= "letter-spacing: 0.7em;">
This paragraph has letter-spacing: 0.7em;
</p>
<p style= "letter-spacing: -1px;">
This paragraph has letter-spacing: -1px;
</p>
</body>
</html>