Cell margin refers to the distance between the cell content and the border.
Basic Grammar

语法解释
单元格的边距以像素为单位。
文件范例：10-10.htm
设定表格的单元格边距。
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主流的网页设计软件

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网页图像软件	Fireworks
网页制作软件	Dreamweaver
网页动画软件	Flash

Grammar explanation
Cell margins are measured in pixels.
File example: 10-10.htm Set the cell margins of the table.
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Mainstream web design software

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Web image software	Fireworks
Web page creation software	Dreamweaver
Web animation software	Flash

22 23 File Description Line 11 defines the cell margin of the table to be 25 pixels.