Listing 3 provides an example of an embedded style declaration that really should be held within an external CSS file for greater code maintainability.
清单3提供了嵌入样式声明的一个例子，该声明应该保留在一个外部CSS文件内以便获得更好的代码可维护性。
Listing 3 provides an example of an embedded style declaration that really should be held within an external CSS file for greater code maintainability.
清单3提供了嵌入样式声明的一个例子，该声明应该保留在一个外部CSS文件内以便获得更好的代码可维护性。
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