[Solved] i have 5 elements and I choose one of them that when i click on that will be red but when i click to other elements it also be red

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i have 5 elements and I choose one of them that when i click on that will be red but when i click to other elements it also be red

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solved i have 5 elements and I choose one of them that when i click on that will be red but when i click to other elements it also be red