CSS已解决许多与窗口修饰相关的问题：字体、间距、填充、背景，等等—所有视觉呈现元素。
CSS has addressed many issues related to window dressing: fonts, spacing, padding, backgrounds, and more-all visual presentation elements.
构建表的方法是构建许多宽度、字体、填充颜色、行颜色等各不相同的单元。
The way to build tables is to build a bunch of cells that have various widths, fonts, fill color, line color, and so on.
除了字体外，可以在填充、空白、边框以及任何可以设置大小的地方使用em值。
In addition to font, you can use the em value for padding, margin, border, and wherever you can set up sizes.
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