# HTML 类 对 HTML 进行分类(设置类),使我们能够为元素的类定义 CSS 样式。 为相同的类设置相同的样式,或者为不同的类设置不同的样式。 ```html
London is the capital city of England. It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.
London is the capital city of England. It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.
Paris is the capital and most populous city of France.
Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the most populous metropolitan area in the world.