Hello! I recently asked how to make an oblique inner shadow .
Now I have the need to create the same shadow, then a circular one. I had an idea to create several gradients, but it looks more like a rhombus.
div { width: 200px; height: 200px; margin: auto; background: linear-gradient(-115deg, transparent 70%, black 100%), linear-gradient(-155deg, transparent 70%, black 100%), linear-gradient(115deg, transparent 70%, black 100%), linear-gradient(155deg, transparent 70%, black 100%), linear-gradient(-70deg, transparent 70%, black 100%), linear-gradient(-20deg, transparent 70%, black 100%), linear-gradient(70deg, transparent 70%, black 100%), linear-gradient(20deg, transparent 70%, black 100%), linear-gradient(45deg, transparent 70%, black 100%), linear-gradient(-45deg, transparent 70%, black 100%), linear-gradient(-135deg, transparent 70%, black 100%), linear-gradient(135deg, transparent 70%, black 100%) } <div></div>