line-height đặt chiều cao dòng văn bản. Giá trị: number, length, hoặc %.
Ví dụ
<html>
<head></head>
<body>
<p style="width:300px; height:100px; border:2px solid green; padding:5px; margin:10px; line-height:30px;">
This paragraph is 300 pixels wide and 100 pixels high and here line height is 50 pixels.
</p>
</body>
</html>