You can group selectors. Separate each selector with a comma. In the example below we have grouped all the header elements.

你可以将多个选择器组合在一起，用逗号链接。

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Also notice the use of group selectors, where two or more selectors are grouped together to have the same style declarations.

还要注意组选择符，也就是两个或更多的选择符组合在一起，使用相同的样式声明。

youdao

Also notice the use of group selectors, where two or more selectors are grouped together to have the same style declarations.

还要注意组选择符，也就是两个或更多的选择符组合在一起，使用相同的样式声明。

youdao