.reveal-image{-webkit-mask:radial-gradient(#fff 71%,#fff0 70%) content-box 50% /var(--_s,.1% .1%) no-repeat;mask:radial-gradient(#fff 71%,#fff0 70%) content-box 50% /var(--_s,.1% .1%) no-repeat;-webkit-mask-composite:source-in,xor;mask-composite:intersect}.reveal-group:hover .reveal-image{--_s:100% 100%}