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CSS border-top-style Property
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CSS border-top-color Property
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border-top-right-radius - CSS: Cascading Style Sheets | MDN
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CSS | border-top-right-radius Property - GeeksforGeeks
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Box rendering type
Css/Training/borders - W3C Wiki
CSS | border-top-color Property - GeeksforGeeks
CSS | border-top-width Property - GeeksforGeeks
