两次烹饪法显得冗余，并且使你的网页不标准，还没有提供一种显示替换内容的机制。
The twice-cooked method is redundant, makes your web pages invalid, and doesn't include a mechanism for inserting alternative content.
后一种标准化的标记暗示了上下文，使网页爬行工具（spider和scraper）能够更轻松地获取网页中的重要内容。
The latter, standardized tags imply context, making it easier for spiders and scrapers to tease pertinent content from a page.
通常来说，一个widget(小部件)就是一种可移植，可重使的应用程序组件或者动态内容片段，可以部署到网页之中，接受输入，并与应用程序或者其他的小部件进行通信。
In general, a widget is a portable, reusable application or piece of dynamic content that can be placed into a web page, receive input, and communicate with an application or with another widget.
CSS是在1996年推出的网页设计师提供一种方法，使他们的网站看起来有吸引力。
CSS was introduced in 1996 to provide web designers a way to make their websites look attractive.
CSS是在1996年推出的网页设计师提供一种方法，使他们的网站看起来有吸引力。
CSS was introduced in 1996 to provide web designers a way to make their websites look attractive.
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