You can refer to Figure 2 to quickly check the CSS syntax for HTML, ID, and class selectors.

可以参考图2，了解HTML、ID和类选择符的css语法。

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I also discuss how to use stylesheets, CSS syntax, and the cascading order to your advantage.

也会讨论如何使用样式表、CSS语法、层叠顺序的优势。

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Listing 2 shows an example of using an equals sign, something not used within the CSS syntax, in section comments.

清单2给出一个在部分的注释中使用等号的示例。

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