CSS3 文档 谈到 :hover 和 :focus ，这对我来说似乎完全一样.两者有什么区别?我没看到什么?

The CSS3 doc talks about :hover and :focus, which seem exactly the same to me. What are the differences between the two? What am I not seeing?

谢谢！

推荐答案

当鼠标指针悬停在元素上时，悬停为真".如果光标在该元素中，则焦点为真.悬停可能为假而焦点为真(例如单击文本字段然后将鼠标移开)

Hover is 'true' when the mouse pointer is over an element. Focus is true if the cursor is in that element. It's possible for hover to be false and focus true (e.g click in a text field then move the mouse away)