css中focus-within与focus伪类有啥区别?
网友回复
:focus表示当前元素处于focus状态时候的样式;
而:focus-within表示当前元素或者当前元素的子元素处于focus状态的样式;
示例代码:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum=1.0,minimum=1.0,us...
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