When elements of a page have focus (such as a link or button), they show an outline. I would like this outline to only display when that element was given focus by the keyboard, not by the mouse.When elements of a page have focus (such as a l
阅读背景：
鼠标焦点没有轮廓，但仍然有键盘焦点的轮廓？
来源：互联网
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