I have a question about 'aria' attribute.

Dear Sir.
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Hello, this is hyeyeong from the UI development department at N Technology Services Co.
I'm sending this email to ask a question about 'aria' attribute.
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I'm developing floating GNB similar to this. (red box)
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In my page, GNB is appeared and disappeared downward according to the scroll direction. ( 👆: disappeared, 👇: appeared )
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I tried to control it with the 'aria-hidden' attribute and 'display' property (CSS),
but it seems to be a bad way because it seems like the elements will be excluded from the a11y tree every time I scroll reversed.
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Please advise which 'aria' attribute should be used to control the hiding of the element.
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I'm looking forward to hearing from you.
Thank you.
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Sincerely,
Hyeyeong Jeon
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전혜영 HYEYEONG JEON
UI개발4팀

경기도 성남시 분당구 황새울로 359번길 11 미래에셋플레이스, 13590
Mobile 010-2244-2948
Email h.y.jeon@nhn.com

Received on Monday, 8 October 2018 05:20:30 UTC