.bento-frame{--border-offset:120px;z-index:-1;mask-image:linear-gradient(to right,transparent 0,black var(--border-offset),black calc(100% - var(--border-offset)),transparent 100%),linear-gradient(to bottom,transparent 0,black var(--border-offset),black calc(100% - var(--border-offset)),transparent 100%);mask-size:100% 100%;mask-repeat:no-repeat;mask-composite:intersect;@media (max-width:1199px){--border-offset:24px}}