It allows all HTML elements to receive keyboard focus because ARIA extends the tabindex property scope.

它允许所有的HTML元素接收键盘关注，因为ARIA扩展了tabindex属性作用域。

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The onblur attribute of the nested component is also changed to clear the help message when the element loses the keyboard focus.

嵌套组件的onblur属性也发生更改，以在元素丢失键盘焦点时清除帮助消息。

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When a UI component gains or loses the keyboard focus, it generates events that can be captured through the onfocus and onblur attributes.

当UI组件获得或丢失键盘焦点，它将生成可以通过onfocus和onblur属性捕获的事件。

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By and large, manufacturers and carriers alike have shifted their focus away from keyboard-equipped smartphones, and you'll rarely find more than one option on any given carrier.

ENGADGET: 's smartphone buyer's guide: fall 2012 edition

My only hope for Windows 8 now is that Microsoft comes to its senses and allows us to customize Windows 8 to focus more on the keyboard and mouse.

FORBES: Why Windows 8 Is The First Windows Release I Absolutely Hate

Sprint has decided to focus solely on the QWERTY keyboard-packing Q10.

FORBES: No BYOD? BlackBerry Z10 Pre-Order Today/Tomorrow