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<html><head><style> #example1 { border: 2px solid red; inline-size: 300px; padding: 10px; writing-mode: vertical-rl; border-start-start-radius: 25px;}</style></head><body><h2>border-start-start-radius: 25px:</h2><div id="example1"> <p>With writing-mode property value set to 'vertical-rl', the corner affected by the border-start-start-radius property is on the top left.</p></div></body></html>