如何解決li按鈕之間的問題？

下午好我對前端有些新東西的疑問是如何解決這個錯誤，當我點擊語言按鈕和另一個導航按鈕來改變它，我似乎我仍然在按鈕和我知道在懸停當李開放時仍然有顏色，在jQuery中我有我能解決的問題嗎？如何解決li按鈕之間的問題？

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