<p> <style> html, body { background: conic-gradient(#F4DA64 225deg, #3F4869 225deg 315deg, #F4DA64 315deg); margin: -122px -72px; border: solid var(--o, 2in) #3F4869; border-radius: 9in; * { background: #F4DA64; margin: 20px; --o: 5vw; p { position: fixed; inset: 30vw 20vw; background: linear-gradient(90deg, #F4DA64 50%, 0, transparent 80%, 0, #F4DA64); } } } </style>